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TI-2026-04991 Aliases CVE-2026-5686GHSA-fc6j-rjwv-62c9

Tenda CX12L RouteStatic fromRouteStatic stack-based overflow

Priority HIGH 73CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

A security flaw has been discovered in Tenda CX12L 16.03.53.12. This vulnerability affects the function fromRouteStatic of the file /goform/RouteStatic. The manipulation of the argument page results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00681 52nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TendaCX12L16.03.53.12—No fix listedCNA
  • CX12L VendorTenda Affected 16.03.53.12 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:tenda:cx12l_firmware:16.03.53.12:*:*:*:*:*:*:*16.03.53.12VulnerableTenda
cpe:2.3:h:tenda:cx12l:-:*:*:*:*:*:*:*not specified by NVDRunning onTenda
  • cpe:2.3:o:tenda:cx12l_firmware:16.03.53.12:*:*:*:*:*:*:* Versions 16.03.53.12 Vulnerable ·Tenda
  • cpe:2.3:h:tenda:cx12l:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Tenda

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-5686
  2. 2026-10-03 Alias added: GHSA-fc6j-rjwv-62c9

References

Exploit 1

Other 1

  • TI-2026-07169 Tenda CX12L SetPptpServerCfg” formSetPPTPServer stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-04992 Tenda CX12L NatStaticSetting fromNatStaticSetting stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-04990 Tenda CX12L addressNat fromAddressNat stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-04989 Tenda CX12L webExcptypemanFilter fromwebExcptypemanFilter stack-based overflow CVSS 4.0HIGH 8.6
  • TI-2026-04988 Tenda CX12L P2pListFilter fromP2pListFilter stack-based overflow CVSS 4.0MEDIUM 5.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences