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TI-2026-04500 Aliases CVE-2026-5156GHSA-q7wf-8q63-47pq

Tenda CH22 Parameter QuickIndex formQuickIndex 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 vulnerability was determined in Tenda CH22 1.0.0.1. This impacts the function formQuickIndex of the file /goform/QuickIndex of the component Parameter Handler. This manipulation of the argument mit_linktype causes stack-based buffer overflow. The attack is possible to be carried out remotely. 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 0.00644 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
TendaCH221.0.0.1—No fix listedCNA
  • CH22 VendorTenda Affected 1.0.0.1 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:tenda:ch22_firmware:1.0.0.1:*:*:*:*:*:*:*1.0.0.1VulnerableTenda
cpe:2.3:h:tenda:ch22:-:*:*:*:*:*:*:*not specified by NVDRunning onTenda
  • cpe:2.3:o:tenda:ch22_firmware:1.0.0.1:*:*:*:*:*:*:* Versions 1.0.0.1 Vulnerable ·Tenda
  • cpe:2.3:h:tenda:ch22:-:*:*:*:*:*:*:* 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-2026-5156
  2. 2026-10-03 Alias added: GHSA-q7wf-8q63-47pq

References

Exploit 1

Other 1

  • TI-2025-10464 Tenda CH22 SafeEmailFilter formSafeEmailFilter memory corruption CVSS 4.0CRITICAL 9.3
  • TI-2025-10459 Tenda CH22 HTTP Request AdvSetWrlsafeset formWrlsafeset stack-based overflow CVSS 4.0CRITICAL 9.3
  • TI-2024-30869 Tenda CH22 V1.0.0.6(468) has a stack overflow vulnerability located in the frmL7PlotForm function. CVSS 3.1CRITICAL 9.8
  • TI-2024-30868 CH22 V1.0.0.6(468) has a stack overflow vulnerability located in the fromqossetting function. CVSS 3.1CRITICAL 9.8
  • TI-2026-04913 Tenda CH22 WrlExtraSet formWrlExtraSet stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-04912 Tenda CH22 Parameter CertLocalPrecreate formCertLocalPrecreate stack-based overflow CVSS 4.0HIGH 8.7
See all 38 →

Sources

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