CVE-2026-6134 Tenda F451 qossetting fromqossetting stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the Tenda F451 router's QoS settings, potentially leading to arbitrary code execution.
- 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-2026-6134?
CVE-2026-6134 is a high-severity memory corruption vulnerability in Tenda F451, published on 12 Apr 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 F451 1.0.0.7_cn_svn7958. This vulnerability affects the function fromqossetting of the file /goform/qossetting. Performing a manipulation of the argument qos results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks.
Which versions are affected by CVE-2026-6134?
It affects 1 product.
Products include Tenda F451 Firmware.
How do I fix CVE-2026-6134?
No fix has been published for CVE-2026-6134 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-6134 being exploited?
There is no known exploitation of CVE-2026-6134 in the wild and no public exploit code.
Other vulnerabilities in Tenda F451
- CVE-2026-6120 Tenda F451 httpd DhcpListClient fromDhcpListClient stack-based overflow
- CVE-2026-6121 Tenda F451 httpd WrlclientSet stack-based overflow
- CVE-2026-6122 Tenda F451 httpd L7Prot frmL7ProtForm stack-based overflow
- CVE-2026-6123 Tenda F451 httpd addressNat fromAddressNat stack-based overflow
- CVE-2026-6124 Tenda F451 httpd SafeMacFilter fromSafeMacFilter stack-based overflow
Sources
Also known as GHSA-mfv2-j96x-vw56.