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CVE-2025-49794critical9.1

Libxml: heap use after free (uaf) leads to denial of service (dos)

Impact

A use-after-free vulnerability was found in libxml2. This issue occurs when parsing XPath elements under certain circumstances when the XML schematron has the schema elements. This flaw allows a malicious actor to craft a malicious XML document used as input for libxml, resulting in the program's crash using libxml or other possible undefined behaviors.

Source excerpt · redhat
Applies when

This issue occurs when parsing XPath elements under certain circumstances when the XML schematron has the <sch:name path="..."/> schema elements.

What to do

There's no available mitigation other than avoid processing untrusted XML documents before updating to the libxml version containing the fix.

redhat guidance

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

Vendor not supplied · redhat

libxml2

1 range

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affected

0 → before 2.15.0

semver versions

unaffected

unknown

Other versions: unaffected

Red Hat · redhat

Red Hat Enterprise Linux 10

1 range

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affected

unaffected

0:2.12.5-7.el10_0 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/o:redhat:enterprise_linux:10.0

Red Hat · redhat

Red Hat Enterprise Linux 7 Extended Lifecycle Support

1 range

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affected

unaffected

0:2.9.1-6.el7_9.10 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/o:redhat:rhel_els:7

Red Hat · redhat

Red Hat Enterprise Linux 8

1 range

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affected

unaffected

0:2.9.7-21.el8_10.1 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:enterprise_linux:8::appstreamcpe:/o:redhat:enterprise_linux:8::baseos

Red Hat · redhat

Red Hat Enterprise Linux 8

1 range

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affected

unaffected

0:2.9.7-21.el8_10.1 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:enterprise_linux:8::appstreamcpe:/o:redhat:enterprise_linux:8::baseos

Red Hat · redhat

Red Hat Enterprise Linux 8.2 Advanced Update Support

1 range

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affected

unaffected

0:2.9.7-9.el8_2.3 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:rhel_aus:8.2::appstreamcpe:/o:redhat:rhel_aus:8.2::baseos

Red Hat · redhat

Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

1 range

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affected

unaffected

0:2.9.7-9.el8_4.6 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:rhel_aus:8.4::appstreamcpe:/a:redhat:rhel_eus_long_life:8.4::appstreamcpe:/o:redhat:rhel_aus:8.4::baseoscpe:/o:redhat:rhel_eus_long_life:8.4::baseos

Red Hat · redhat

Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

1 range

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affected

unaffected

0:2.9.7-9.el8_4.6 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:rhel_aus:8.4::appstreamcpe:/a:redhat:rhel_eus_long_life:8.4::appstreamcpe:/o:redhat:rhel_aus:8.4::baseoscpe:/o:redhat:rhel_eus_long_life:8.4::baseos

Red Hat · redhat

Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support

1 range

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affected

unaffected

0:2.9.7-13.el8_6.10 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:rhel_aus:8.6::appstreamcpe:/a:redhat:rhel_e4s:8.6::appstreamcpe:/a:redhat:rhel_tus:8.6::appstreamcpe:/o:redhat:rhel_aus:8.6::baseoscpe:/o:redhat:rhel_e4s:8.6::baseoscpe:/o:redhat:rhel_tus:8.6::baseos

Red Hat · redhat

Red Hat Enterprise Linux 8.6 Telecommunications Update Service

1 range

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affected

unaffected

0:2.9.7-13.el8_6.10 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:rhel_aus:8.6::appstreamcpe:/a:redhat:rhel_e4s:8.6::appstreamcpe:/a:redhat:rhel_tus:8.6::appstreamcpe:/o:redhat:rhel_aus:8.6::baseoscpe:/o:redhat:rhel_e4s:8.6::baseoscpe:/o:redhat:rhel_tus:8.6::baseos

Red Hat · redhat

Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions

1 range

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affected

unaffected

0:2.9.7-13.el8_6.10 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:rhel_aus:8.6::appstreamcpe:/a:redhat:rhel_e4s:8.6::appstreamcpe:/a:redhat:rhel_tus:8.6::appstreamcpe:/o:redhat:rhel_aus:8.6::baseoscpe:/o:redhat:rhel_e4s:8.6::baseoscpe:/o:redhat:rhel_tus:8.6::baseos

Red Hat · redhat

Red Hat Enterprise Linux 8.8 Telecommunications Update Service

1 range

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affected

unaffected

0:2.9.7-16.el8_8.9 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:rhel_e4s:8.8::appstreamcpe:/a:redhat:rhel_tus:8.8::appstreamcpe:/o:redhat:rhel_e4s:8.8::baseoscpe:/o:redhat:rhel_tus:8.8::baseos

Red Hat · redhat

Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions

1 range

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affected

unaffected

0:2.9.7-16.el8_8.9 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:rhel_e4s:8.8::appstreamcpe:/a:redhat:rhel_tus:8.8::appstreamcpe:/o:redhat:rhel_e4s:8.8::baseoscpe:/o:redhat:rhel_tus:8.8::baseos

Red Hat · redhat

Red Hat Enterprise Linux 9

1 range

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affected

unaffected

0:2.9.13-10.el9_6 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:enterprise_linux:9::appstreamcpe:/o:redhat:enterprise_linux:9::baseos

Red Hat · redhat

Red Hat Enterprise Linux 9

1 range

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affected

unaffected

0:2.9.13-10.el9_6 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:enterprise_linux:9::appstreamcpe:/o:redhat:enterprise_linux:9::baseos

Red Hat · redhat

Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

1 range

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affected

unaffected

0:2.9.13-1.el9_0.5 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:rhel_e4s:9.0::appstreamcpe:/o:redhat:rhel_e4s:9.0::baseos

Red Hat · redhat

Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

1 range

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affected

unaffected

0:2.9.13-3.el9_2.7 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:rhel_e4s:9.2::appstreamcpe:/o:redhat:rhel_e4s:9.2::baseos

Red Hat · redhat

Red Hat Enterprise Linux 9.4 Extended Update Support

1 range

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affected

unaffected

0:2.9.13-10.el9_4 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:rhel_eus:9.4::appstreamcpe:/o:redhat:rhel_eus:9.4::baseos

Red Hat · redhat

Red Hat JBoss Core Services 2.4.62.SP2

0 ranges

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affected

unaffected

unknown

Other versions: unaffected

Product identifiers (CPE)cpe:/a:redhat:jboss_core_services:1.0

Red Hat · redhat

Red Hat OpenShift Container Platform 4.12

1 range

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affected

unaffected

412.86.202510291903-0 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:openshift:4.12::el8

Red Hat · redhat

Red Hat OpenShift Container Platform 4.13

1 range

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affected

unaffected

413.92.202510150118-0 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:openshift:4.13::el9

Red Hat · redhat

Red Hat OpenShift Container Platform 4.14

1 range

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affected

unaffected

414.92.202510211419-0 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:openshift:4.14::el9

Red Hat · redhat

Red Hat OpenShift Container Platform 4.15

1 range

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affected

unaffected

415.92.202609140326-0 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:openshift:4.15::el9

Red Hat · redhat

Red Hat OpenShift Container Platform 4.16

1 range

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affected

unaffected

416.94.202609011112-0 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:openshift:4.16::el9

Red Hat · redhat

Red Hat OpenShift Container Platform 4.17

1 range

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affected

unaffected

417.94.202510112152-0 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:openshift:4.17::el9

Red Hat · redhat

Red Hat OpenShift Container Platform 4.18

1 range

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affected

unaffected

418.94.202510230424-0 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:openshift:4.18::el9

Red Hat · redhat

Red Hat OpenShift Container Platform 4.19

1 range

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affected

unaffected

4.19.9.6.202510140714-0 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:openshift:4.19::el9

Red Hat · redhat

Red Hat OpenShift Container Platform 4.20

1 range

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affected

unaffected

4.20.9.6.202509251656-0 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:openshift:4.20::el9

Red Hat · redhat

Red Hat Web Terminal 1.11 on RHEL 9

1 range

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affected

unaffected

1.11-19 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:webterminal:1.11::el9

Red Hat · redhat

Red Hat Web Terminal 1.11 on RHEL 9

1 range

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affected

unaffected

1.11-8 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:webterminal:1.11::el9

Red Hat · redhat

Red Hat Web Terminal 1.12 on RHEL 9

1 range

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affected

unaffected

1.12-4 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:webterminal:1.12::el9

Red Hat · redhat

RHOSS-1.36-RHEL-8

1 range

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affected

unaffected

1.36.0-11 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:openshift_serverless:1.36::el8

Red Hat · redhat

RHOSS-1.36-RHEL-8

1 range

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affected

unaffected

1.36.0-11 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:openshift_serverless:1.36::el8

Red Hat · redhat

RHOSS-1.36-RHEL-8

1 range

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affected

unaffected

1.36.0-11 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:openshift_serverless:1.36::el8

Red Hat · redhat

RHOSS-1.36-RHEL-8

1 range

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affected

unaffected

1.36.0-10 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:openshift_serverless:1.36::el8

Red Hat · redhat

RHOSS-1.36-RHEL-8

1 range

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affected

unaffected

1.36.0-10 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:openshift_serverless:1.36::el8

Red Hat · redhat

RHOSS-1.36-RHEL-8

1 range

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affected

unaffected

1.36.0-4 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:openshift_serverless:1.36::el8

Red Hat · redhat

RHOSS-1.36-RHEL-8

1 range

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affected

unaffected

1.36.0-9 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:openshift_serverless:1.36::el8

Red Hat · redhat

RHOSS-1.36-RHEL-8

1 range

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affected

unaffected

1.36.0-12 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:openshift_serverless:1.36::el8

Red Hat · redhat

RHOSS-1.36-RHEL-8

1 range

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affected

unaffected

1.36.0-18 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:openshift_serverless:1.36::el8

Red Hat · redhat

RHOSS-1.36-RHEL-8

1 range

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affected

unaffected

1.36.0-11 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:openshift_serverless:1.36::el8

Red Hat · redhat

RHOSS-1.36-RHEL-8

1 range

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affected

unaffected

1.36.0-7 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:openshift_serverless:1.36::el8

Red Hat · redhat

cert-manager operator for Red Hat OpenShift 1.16

1 range

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affected

unaffected

v1.16.5-1760515757 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:cert_manager:1.16::el9

Red Hat · redhat

OpenShift File Integrity Operator - FIO 1

1 range

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affected

unaffected

v1.3 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:openshift_file_integrity_operator:1::el9

Red Hat · redhat

Red Hat Hardened Images

1 range

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affected

unaffected

2.15.2-0.3.hum1 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:hummingbird:1

Red Hat · redhat

Red Hat Insights proxy 1.5

1 range

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affected

unaffected

1.5.5-1754504343 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:insights_proxy:1.5::el9

Red Hat · redhat

Red Hat 3scale API Management Platform 2

0 ranges

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affected

unaffected

unknown

Other versions: unaffected

Product identifiers (CPE)cpe:/a:redhat:red_hat_3scale_amp:2

Red Hat · redhat

Red Hat 3scale API Management Platform 2

0 ranges

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affected

unaffected

unknown

Other versions: unaffected

Product identifiers (CPE)cpe:/a:redhat:red_hat_3scale_amp:2

Red Hat · redhat

Red Hat Enterprise Linux 6

0 ranges

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affected

unaffected

unknown

Other versions: unknown

Product identifiers (CPE)cpe:/o:redhat:enterprise_linux:6

Siemens · siemens-SADP

RUGGEDCOM ROX MX5000

1 range

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affected

0 → before V2.17.1

custom versions

unaffected

unknown

Other versions: unknown

Siemens · siemens-SADP

RUGGEDCOM ROX MX5000RE

1 range

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affected

0 → before V2.17.1

custom versions

unaffected

unknown

Other versions: unknown

Siemens · siemens-SADP

RUGGEDCOM ROX RX1400

1 range

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affected

0 → before V2.17.1

custom versions

unaffected

unknown

Other versions: unknown

Siemens · siemens-SADP

RUGGEDCOM ROX RX1500

1 range

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affected

0 → before V2.17.1

custom versions

unaffected

unknown

Other versions: unknown

Siemens · siemens-SADP

RUGGEDCOM ROX RX1501

1 range

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affected

0 → before V2.17.1

custom versions

unaffected

unknown

Other versions: unknown

Siemens · siemens-SADP

RUGGEDCOM ROX RX1510

1 range

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affected

0 → before V2.17.1

custom versions

unaffected

unknown

Other versions: unknown

Siemens · siemens-SADP

RUGGEDCOM ROX RX1511

1 range

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affected

0 → before V2.17.1

custom versions

unaffected

unknown

Other versions: unknown

Siemens · siemens-SADP

RUGGEDCOM ROX RX1512

1 range

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affected

0 → before V2.17.1

custom versions

unaffected

unknown

Other versions: unknown

Siemens · siemens-SADP

RUGGEDCOM ROX RX1524

1 range

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affected

0 → before V2.17.1

custom versions

unaffected

unknown

Other versions: unknown

Siemens · siemens-SADP

RUGGEDCOM ROX RX1536

1 range

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affected

0 → before V2.17.1

custom versions

unaffected

unknown

Other versions: unknown

Siemens · siemens-SADP

RUGGEDCOM ROX RX5000

1 range

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affected

0 → before V2.17.1

custom versions

unaffected

unknown

Other versions: unknown

Siemens · siemens-SADP

RUGGEDCOM RST2428P

1 range

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affected

0 → before V4.0

custom versions

unaffected

unknown

Other versions: unknown

Original source description

A use-after-free vulnerability was found in libxml2. This issue occurs when parsing XPath elements under certain circumstances when the XML schematron has the <sch:name path="..."/> schema elements. This flaw allows a malicious actor to craft a malicious XML document used as input for libxml, resulting in the program's crash using libxml or other possible undefined behaviors.

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2025-49794

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-825 ↗

Expired Pointer Dereference

redhat

Related →
Contributing organizations · 4
redhat

Assigning organization

2026-10-29
CISA-ADP

Additional data publisher

2025-06-16
CVE

Additional data publisher

2025-11-03
siemens-SADP

Additional data publisher

2026-06-02

What changed

Follow changes
No substantive changes have been recorded here yet. History starts when cve.new observes a change after tracking is enabled; earlier edits are not reconstructed.

Large field values are marked as truncated previews. Original source snapshots remain retained.

References

34 sources
View 28 more references
access.redhat.com/errata/RHSA-2025:12199
vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:12237
vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:12239
vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:12240
vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:12241
vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:13335
vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:15397
vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:15827
vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:15828
vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:18217
vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:18218
vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:18219
vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:18240
vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:19020
vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:19041
vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:19046
vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:19894
vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:21913
vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:0934
vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:62549
vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:67857
vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:7519
vendor-advisoryredhat
access.redhat.com/security/cve/CVE-2025-49794
vdb-entryredhat
bugzilla.redhat.com/show_bug.cgi
issue-trackingredhat
gitlab.gnome.org/GNOME/libxml2/-/issues/931
Source referenceredhat
lists.debian.org/debian-lts-announce/2025/07/msg00014.html
Source referenceCVE
cert-portal.siemens.com/productcert/html/ssa-577017.html
Source referencesiemens-SADP
cert-portal.siemens.com/productcert/html/ssa-253495.html
Source referencesiemens-SADP