Tenda AC500 WriteFacMac formWriteFacMac command injection
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-77.
Summary
A vulnerability classified as critical has been found in Tenda AC500 2.0.1.9(1307). Affected is the function formWriteFacMac of the file /goform/WriteFacMac. The manipulation of the argument mac leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-261144. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Tenda | AC500 | 2.0.1.9(1307) | — | No fix listed | CNA |
- AC500 VendorTenda Affected 2.0.1.9(1307) Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-3908
- 2026-10-03 Alias added: GHSA-q7j7-mp2g-wrw8
- 2026-10-06 EPSS moved to the 95th–99th percentile
References
More Tenda Ac500 Firmware vulnerabilities
- TI-2023-10679 Tenda AC500 V2.0.1.9(1307) is vulnerable to Buffer Overflow in function fromRouteStatic… CVSS 3.1CRITICAL 9.8
- TI-2024-03645 Tenda AC500 setcfm formSetCfm stack-based overflow CVSS 3.1CRITICAL 9.8
- TI-2023-10680 Tenda AC500 V2.0.1.9(1307) is vulnerable to Buffer Overflow in function fromAddressNat… CVSS 3.1CRITICAL 9.8
- TI-2025-06923 Tenda AC500 setWtpData formSetAPCfg stack-based overflow CVSS 4.0HIGH 8.7
- TI-2023-24718 A Buffer Overflow vulnerability in Tenda AC500 v.2.0.1.9 allows a remote attacker to… CVSS 3.1HIGH 7.5
- TI-2024-03648 Tenda AC500 DhcpListClient fromDhcpListClient stack-based overflow CVSS 3.1HIGH 8.8
Sources
- CVE-2024-3908 · CVE Program
- CVE-2024-3908 · NVD
- FIRST EPSS
- GHSA-q7j7-mp2g-wrw8 · GitHub Advisory Database · CC BY 4.0
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