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Fencer Vulns
critical 9.8

CVE-2025-69763 json

Tenda AX3 firmware v16.03.12.11 contains a stack overflow in formSetIptv via the vlanId parameter, which can cause memory corruption and en…

published 2026-01-21 9 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-3607

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits
0
none known

Summary

Tenda AX3 firmware v16.03.12.11 contains a stack overflow in formSetIptv via the vlanId parameter, which can cause memory corruption and enable remote code execution.

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
9 mo ago

Exploit prediction

0.89% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • river-brow-763.notion.site https://river-brow-763.notion.site/Tenda-AX3-Buffer-Overflow-in-formSetIptv-2c9a595a7aef8025a3c6c4b102d95dd4?source=copy_link referenced PoC, tagged "exploit" by a source, unverified
  • river-brow-763.notion.site https://river-brow-763.notion.site/Tenda-AX3-Buffer-Overflow-in-formSetIptv-2c9a595a7aef8025a3c6c4b102d95dd4 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Classification

Weakness
  • CWE-121 Stack-based Buffer Overflow

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.