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TI-2025-06762 Aliases CVE-2025-7421GHSA-m965-pw66-9w65

Tenda O3V2 httpd operateMacFilter fromMacFilterModify 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 found in Tenda O3V2 1.0.0.12(3880). It has been rated as critical. This issue affects the function fromMacFilterModify of the file /goform/operateMacFilter of the component httpd. The manipulation of the argument mac leads to stack-based buffer overflow. The attack may be initiated 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 0.0096 61st 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
TendaO3V21.0.0.12(3880)—No fix listedCNA
  • O3V2 VendorTenda Affected 1.0.0.12(3880) Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:tenda:o3_firmware:1.0.0.12\(3880\):*:*:*:*:*:*:*1.0.0.12(3880)VulnerableTenda
cpe:2.3:h:tenda:o3:2.0:*:*:*:*:*:*:*2.0Running onTenda
  • cpe:2.3:o:tenda:o3_firmware:1.0.0.12\(3880\):*:*:*:*:*:*:* Versions 1.0.0.12(3880) Vulnerable ·Tenda
  • cpe:2.3:h:tenda:o3:2.0:*:*:*:*:*:*:* Versions 2.0 Running on ·Tenda

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-7421
  2. 2026-10-03 Alias added: GHSA-m965-pw66-9w65

References

Exploit 2

Other 1

  • TI-2025-35064 Tenda O3V2 1.0.0.12(3880) is vulnerable to Buffer Overflow in the fromSafeSetMacFilter function via the mac parameter. CVSS 3.1CRITICAL 9.8
  • TI-2024-24343 Tenda O3V2 v1.0.0.12(3880) was discovered to contain a Blind Command Injection via stpEn… CVSS 3.1CRITICAL 9.8
  • TI-2025-06764 Tenda O3V2 httpd setWrlFilterList formWifiMacFilterSet stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2025-06763 Tenda O3V2 httpd setNetworkService setAutoReboot stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2025-06761 Tenda O3V2 httpd setWrlBasicInfo formWifiBasicSet stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2025-06760 Tenda O3V2 httpd setRateTest fromSpeedTestSet stack-based overflow CVSS 4.0HIGH 8.7
See all 15 →

Sources

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