CVE-2026-3622 — Denial-of-Service Vulnerability in UPnP Component of TP Link's TL-WR841N
The vulnerability exists in the UPnP component of TL-WR841N v14, where improper input validation leads to an out-of-bounds read, potentially causing a crash of the UPnP service.…
Published: 2026-03-26 · CVSS: 7.1 · CVSS 4.0
The vulnerability exists in the UPnP component of TL-WR841N v14, where improper input validation leads to an out-of-bounds read, potentially causing a crash of the UPnP service. Successful exploitation can cause the UPnP service to crash, resulting in a Denial-of-Service condition. This vulnerability affects TL-WR841N v14 < EN_0.9.1 4.19 Build 260303 Rel.42399n (V14_260303) and < US_0.9.1.4.19 Build 260312 Rel. 49108n (V14_0304).
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7