CVE-2024-3908
A vulnerability classified as critical has been found in Tenda AC500 2.0.1.9(1307).
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (8.72%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 8.72% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-77
- Affected
- tenda/ac500 firmware
- Source
- cna@vuldb.com
EPSS 8.7% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/AC500/formWriteFacMac.mdExploit, Third Party Advisory
- https://vuldb.com/?ctiid.261144Permissions Required, VDB Entry
- https://vuldb.com/?id.261144Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.313803Third Party Advisory, VDB Entry
- https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/AC500/formWriteFacMac.mdExploit, Third Party Advisory
- https://vuldb.com/?ctiid.261144Permissions Required, VDB Entry
- https://vuldb.com/?id.261144Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.313803Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.