Vulnerability · Published Mar 22, 2026 · Assigned by VulDB
CVE-2026-4554Tenda F453 WriteFacMac FormWriteFacMac privilege escalation
Medium 6.3
In plain English
A medium-severity command injection in F453 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 3.8% (higher than 90% of all known vulnerabilities).
Severity (CVSS 3.1)6.3Medium
Exploit odds (30 days)3.8%top 9.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A security flaw has been discovered in Tenda F453 1.0.0.3. The affected element is the function FormWriteFacMac of the file /goform/WriteFacMac. The manipulation of the argument mac results in command injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.
Affected products (as reported)
Weakness: CWE-77, CWE-74 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
References
- VDB-352381 | Tenda F453 WriteFacMac FormWriteFacMac privilege escalation vdb-entry, technical-description
- VDB-352381 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- Submit #774933 | Tenda F453 v1.0.0.3 Command Injection third-party-advisory
- https://github.com/Litengzheng/vul_db/blob/main/F453/vul_95/README.md exploit
- https://www.tenda.com.cn/ product