CVE-2026-4565CWE-119CWE-120
Tenda AC21 SetNetControlList formSetQosBand buffer overflow
High · published March 23, 2026
What it is
A vulnerability was detected in Tenda AC21 16.03.08.16. Impacted is the function formSetQosBand of the file /goform/SetNetControlList. Performing a manipulation of the argument list results in buffer overflow. The attack can be initiated remotely. The exploit is now public and may be used.
The record
Technical detail
- CVSS v4.0
- 8.7 · HIGH
- Vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
- EPSS
- 0.01021 · 63.1th percentile
- Weaknesses
- CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
- Published
- 2026-03-23T00:34Z
EPSS history
Timeline