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CVE-2026-121890

Adobe Connect | Improper Restriction of XML External Entity Reference ('XXE') (CWE-611)

Products / packages Adobe Connect

Published

Share

Severity and exploitation

Not in CISA KEV

KEV coverage does not rule out exploitation.

KEV checked 15/11/2026, 01:50:31 UTC
adobe · CVSS:3.1 · 7.7
Assessment vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Severity

high7.7

CVSS measures technical severity, not the likelihood of an attack.

Known exploitation

Not listed in the checked CISA KEV catalog

Absence from CISA KEV does not rule out attacks.

Public exploit

Not established by this record

Missing evidence does not mean no public exploit exists.

Remediation

Fix status not established

No structured fix or guidance is available here. Check the latest publisher advisory.

What this means

Adobe Connect versions up to 12.8, 12.9, 12.10, 12.11, and 12.12 are affected by an Improper Restriction of XML External Entity Reference ('XXE') vulnerability, which could allow a low-privileged attacker to access sensitive files. Exploitation does not require user interaction. The scope of the vulnerability has changed.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Attack conditions

Exploitation of this issue does not require user interaction.

Excerpt from the original source description below.

Review supporting sources →

Affected versions

Check the exact model, release, and any platform requirements against your installation.

Adobe · adobe

Adobe Connect

2 ranges
adobe version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → through 12.8

custom versions

unaffected

12.8.a

custom versions

unknown

Other versions: unaffected

Adobe · adobe

Adobe Connect

2 ranges
adobe version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → through 12.9

custom versions

unaffected

12.9.a

custom versions

unknown

Other versions: unaffected

Adobe · adobe

Adobe Connect

2 ranges
adobe version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → through 12.10

custom versions

unaffected

12.10.f

custom versions

unknown

Other versions: unaffected

Adobe · adobe

Adobe Connect

2 ranges
adobe version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → through 12.11

custom versions

unaffected

12.11.i

custom versions

unknown

Other versions: unaffected

Adobe · adobe

Adobe Connect

2 ranges
adobe version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → through 12.12

custom versions

unaffected

12.12.a

custom versions

unknown

Other versions: unaffected

Automatic dependency matching is unavailable for this record. Use the product evidence and publisher’s instructions to check your installation.

What to do

Compare your installed product and version with the affected versions above. A matching product name alone does not confirm exposure.

No structured fix or remediation guidance is available here. Check the full source description and vendor’s latest advisory for a patch or workaround; do not assume another version is safe.

cve.new guidance unless attributed to a publisher. This page does not inspect your installation.

Public exploit evidence

No public exploit reference is identified in the imported evidence. This is not a claim that no exploit exists.

Original source description

Read the full publisher description

Adobe Connect is affected by an Improper Restriction of XML External Entity Reference ('XXE') vulnerability that could lead to arbitrary file system read. A low-privileged attacker could exploit this vulnerability to access sensitive files and directories outside the intended access scope. Exploitation of this issue does not require user interaction. Scope is changed.

References

1 sources
www.adobe.com/trust/security/products/connect/apsb26-191.html
Vendor advisoryadobe

Inside the record

Evidence available

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

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

Original records

CVE-2026-121890

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-611 ↗

Improper Restriction of XML External Entity Reference ('XXE') (CWE-611)

adobe

Related →
Contributing organizations · 2
adobe

Assigning organization

2026-11-10
CISA-ADP

Additional data publisher

2026-11-13

Timeline

All times UTC

  1. Advisory published

    Publication date supplied by the source.

  2. Source updated

    Latest modification date supplied by the source.

  3. Last imported by cve.new

    Latest catalog import, not the date we first saw this advisory.

What changed

Follow changes
  1. CVE · CVE-2026-121890

    Observed 2026-11-14T00:32:40.444Z · upstream updated 2026-11-13T16:38:11.500Z

    Prioritization updated

    before

    []

    after

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-11-13T16:37:54.147961Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "partial"
      }
    ]
  }
]

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

Showing up to 50 most recent observed changes.