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TI-2025-19986 Aliases CVE-2025-27129GHSA-ph9v-qvxr-mh9x

Authentication bypass in Tenda AC6 V5.0

Priority MEDIUM 53CWE-288Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-288.

Summary

An authentication bypass vulnerability exists in the HTTP authentication functionality of Tenda AC6 V5.0 V02.03.01.110. A specially crafted HTTP request can lead to arbitrary code execution. An attacker can send packets to trigger this vulnerability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02109 81st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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
TendaAC6 V5.0V02.03.01.110—No fix listedCNA
  • AC6 V5.0 VendorTenda Affected V02.03.01.110 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:tenda:ac6_firmware:02.03.01.110:*:*:*:*:*:*:*02.03.01.110VulnerableTenda
cpe:2.3:h:tenda:ac6:5.0:*:*:*:*:*:*:*5.0Running onTenda
  • cpe:2.3:o:tenda:ac6_firmware:02.03.01.110:*:*:*:*:*:*:* Versions 02.03.01.110 Vulnerable ·Tenda
  • cpe:2.3:h:tenda:ac6:5.0:*:*:*:*:*:*:* Versions 5.0 Running on ·Tenda

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-27129
  2. 2026-10-03 Alias added: GHSA-ph9v-qvxr-mh9x

References

Advisory 1

  • TI-2025-20961 Tenda AC6 v15.03.05.16 was discovered to contain a buffer overflow via the formSetSpeedWan function. CVSS 3.1CRITICAL 9.8
  • TI-2023-20197 Tenda AC10 V1.0 V15.03.06.23, AC1206 V15.03.06.23, AC8 v4 V16.03.34.06, AC6 V2.0… CVSS 3.1CRITICAL 9.8
  • TI-2023-20196 Tenda AC10 V1.0 V15.03.06.23, AC1206 V15.03.06.23, AC6 V2.0 V15.03.06.23, AC7 V1.0… CVSS 3.1CRITICAL 9.8
  • TI-2023-20193 Tenda AC6 V2.0 V15.03.06.23, AC7 V1.0 V15.03.06.44, F1203 V2.0.1.6, AC5 V1.0… CVSS 3.1CRITICAL 9.8
  • TI-2023-20191 Tenda AC10 V1.0 V15.03.06.23, AC1206 V15.03.06.23, AC8 v4 V16.03.34.06, AC6 V2.0… CVSS 3.1CRITICAL 9.8
  • TI-2023-20109 Buffer Overflow vulnerability in Tenda Ac19 v.1.0, AC18, AC9 v.1.0, AC6 v.2.0 and v.1.0… CVSS 3.1CRITICAL 9.8
See all 107 →

Sources

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