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CVE-2026-123966

Tenda AC19 saveParentControlInfo heap-based overflow

Products / packages Tenda AC19

Published

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Severity and exploitation

Not in CISA KEV

KEV coverage does not rule out exploitation.

KEV checked 09/11/2026, 01:00:31 UTC
VulDB · CVSS:4.0 · 10
Assessment vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
VulDB · CVSS:3.1 · 10
Assessment vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C
VulDB · CVSS:3.0 · 10
Assessment vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C
VulDB · CVSS 2 / source score · 10
Assessment vectorAV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:C
The headline uses the highest imported catalog score. Assessments can differ by source and CVSS version.

Severity

critical10.0

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

Exploit reference published

Source-linked evidence; not proof of attacks in the wild or independent validation.

Remediation

Fix status not established

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

What this means

Tenda AC19 version 16.03.10.07 has a heap-based buffer overflow vulnerability in the saveParentControlInfo function, allowing remote attacks via the deviceId argument. The issue may cause memory corruption. The exploit has been publicly disclosed.

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

Attack conditions

No attack-condition excerpt has been identified here. Review the full source description and references for authentication, network access, and configuration requirements.

Review supporting sources →

Affected versions

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Tenda · VulDB

AC19

1 range

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affected

16.03.10.07

unaffected

unknown

Other versions: unknown

Product identifiers (CPE)cpe:2.3:h:tenda:ac19:*:*:*:*:*:*:*:*
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

The sources identify public exploit references. We have not independently tested them; their availability does not establish exploitation in the wild.

Tmzop/Tenda-AC19-saveParentControlInfo · report.md ↗Attributed to VulDB

Original source description

Read the full publisher description

A vulnerability was determined in Tenda AC19 16.03.10.07. Affected by this issue is the function saveParentControlInfo of the file /goform/saveParentControlInfo. This manipulation of the argument deviceId causes heap-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized.

References

6 sources

Inside the record

Evidence available

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

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

Original records

CVE-2026-123966

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-122 ↗

Heap-based Buffer Overflow

VulDB

Related →
CWE-119 ↗

Memory Corruption

VulDB

Related →
Contributing organizations · 1
VulDB

Assigning organization

2026-11-07

Timeline

All times UTC
  1. Advisory published

    Publication date supplied by the source.

  2. Last imported by cve.new

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

What changed

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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.