CVE-2026-4554 Tenda F453 WriteFacMac FormWriteFacMac privilege escalation
Remote attackers can execute arbitrary commands via the WriteFacMac form, leading to privilege escalation on Tenda F453 routers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-4554?
CVE-2026-4554 is a medium-severity command injection vulnerability in Tenda F453, published on 22 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Which versions are affected by CVE-2026-4554?
It affects 1 product.
Products include Tenda F453 Firmware.
How do I fix CVE-2026-4554?
No fix has been published for CVE-2026-4554 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-4554 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4554 exists.
Other vulnerabilities in Tenda F453
- CVE-2026-5021 Tenda F453 httpd PPTPUserSetting fromPPTPUserSetting stack-based overflow
- CVE-2026-4551 Tenda F453 Parameters SafeClientFilter fromSafeClientFilter memory corruption
- CVE-2026-4552 Tenda F453 Parameters VirtualSer fromVirtualSer memory corruption
- CVE-2026-4553 Tenda F453 Parameters Natlimit fromNatlimit stack-based overflow
- CVE-2026-3726 Tenda F453 webExcptypemanFilter fromwebExcptypemanFilter stack-based overflow
Sources
Also known as GHSA-gh64-hffv-c24x.