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TI-2026-04989 Aliases CVE-2026-5684GHSA-phcm-xmm8-7jpc

Tenda CX12L webExcptypemanFilter fromwebExcptypemanFilter stack-based overflow

Priority HIGH 72CWE-119Published · Updated

Key facts

Attack vector
Adjacent 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 vulnerability was determined in Tenda CX12L 16.03.53.12. Affected by this issue is the function fromwebExcptypemanFilter of the file /goform/webExcptypemanFilter. Executing a manipulation of the argument page can lead to stack-based buffer overflow. The attack requires access to the local network. The exploit has been publicly disclosed and may be utilized.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00648 51st 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-2026-5684
  2. 2026-10-03 Alias added: GHSA-phcm-xmm8-7jpc
  3. 2026-10-25 EPSS moved to the below the 50th percentile
  4. 2026-11-03 EPSS moved to the 50th–90th percentile

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-2026-04991 Tenda CX12L RouteStatic fromRouteStatic stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-04990 Tenda CX12L addressNat fromAddressNat stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-04988 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