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TI-2026-68382 Aliases CVE-2026-105778GHSA-pmv4-xrcq-cmxf

Stack-based buffer overflow in Tenda AC5 Wifi setWifi handler

Priority HIGH 76CWE-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

Tenda AC5 02.03.01.111_multi contains a stack-based buffer overflow (CWE-121) in the wifiPwd argument of /goform/setWifi. A remote attacker with low privileges can trigger the overflow. A public exploit has been disclosed and is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

A vulnerability has been found in Tenda AC5 02.03.01.111_multi. Affected by this issue is some unknown functionality of the file /goform/setWifi of the component Wifi Handler. Such manipulation of the argument wifiPwd leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00476 41st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by 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
TendaAC502.03.01.111_multi—No fix listedCNA
  • AC5 VendorTenda Affected 02.03.01.111_multi Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:o:tenda:ac5_firmware:*:*:*:*:*:*:*:*——Tenda
  • cpe:2.3:o:tenda:ac5_firmware:*:*:*:*:*:*:*:* Versions — — ·Tenda

Remediation

The sources list no fixed version for Tenda AC5.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-06 Threatist record created from CVE-2026-105778
  2. 2026-10-06 Alias added: GHSA-pmv4-xrcq-cmxf
  3. 2026-10-06 CISA SSVC decision points changed
  4. 2026-10-06 Priority changed: MEDIUM → HIGH

References

Exploit 1

Other 1

  • TI-2021-11772 An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-08863 The goform/setUsbUnload endpoint of Tenda AC15 AC1900 version 15.03.05.19 allows remote… KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-10434 An issue was discovered on Tenda AC7 devices with firmware through V15.03.06.44_CN(AC7)… KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-78650 Stack-based buffer overflow in Tenda AC19 web management service CVSS 4.0CRITICAL 10.0
  • TI-2026-66119 Tenda HG7/HG9/HG10 Boa Web Server formLoopBack boaGetVar stack-based overflow CVSS 4.0CRITICAL 10.0
  • TI-2026-57025 Tenda AC18 Telnet telnet missing authentication CVSS 4.0CRITICAL 10.0
See all 1963 →

Sources

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