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TI-2026-01789 Aliases CVE-2026-2139GHSA-349v-v693-4xhw

Tenda TX9 fast_setting_wifi_set sub_432580 buffer 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 TX9 up to 22.03.02.10_multi. Affected by this vulnerability is the function sub_432580 of the file /goform/fast_setting_wifi_set. This manipulation of the argument ssid causes buffer overflow. The attack may be initiated 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 0.00739 54th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD and the CNA
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
TendaTX922.03.02.10_multi—No fix listedCNA
  • TX9 VendorTenda Affected 22.03.02.10_multi Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:tenda:tx9_firmware:*:*:*:*:*:*:*:*up to 22.03.02.10VulnerableTenda
cpe:2.3:h:tenda:tx9:-:*:*:*:*:*:*:*not specified by NVDRunning onTenda
  • cpe:2.3:o:tenda:tx9_firmware:*:*:*:*:*:*:*:* Versions up to 22.03.02.10 Vulnerable ·Tenda
  • cpe:2.3:h:tenda:tx9:-:*:*:*:*:*:*:* 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-2026-2139
  2. 2026-10-03 Alias added: GHSA-349v-v693-4xhw
  3. 2026-10-06 EPSS moved to the 50th–90th percentile

References

Exploit 2

Other 1

  • TI-2026-01790 Tenda TX9 setMacFilterCfg sub_4223E0 buffer overflow CVSS 4.0HIGH 8.7
  • TI-2026-01788 Tenda TX9 SetStaticRouteCfg sub_42D03C buffer overflow CVSS 4.0HIGH 8.7
  • TI-2023-25645 An access control issue in /usr/sbin/httpd in Tenda TX9 V1 V22.03.02.54, Tenda AX3 V3… CVSS 3.1HIGH 8.8

Sources

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