CVE-2026-76649: medium-severity vulnerability in TP-Link System Inc. TL-WR841N v14
Pre-Authentication NULL Pointer Dereference in UPnP SOAP Action Request Processing in TP-Link TL-WR841N
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.3%
A NULL
pointer dereference vulnerability exists in TL-WR841N v14 in the UPnP service when processing SOAP action requests. A specially crafted SOAP action request containing unexpected XML content may cause the UPnP daemon to terminate unexpectedly.
Successful exploitation may result in a denial-of-service condition affecting UPnP functionality until the service is restarted or the device is rebooted.
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Affected products
TP-Link System Inc. · TL-WR841N v14Related CVEs — TP-Link System Inc. TL-WR841N v14
In the same product, most dangerous first.
CVE-2026-102294HIGHAuthenticated OS Command Injection in TL-WR841N IPv6 WAN ConfigurationEPSS 0.9%CVE-2026-76651MEDIUMPre-Authentication Multipart Boundary Buffer Overflow in HTTP Service in TP-Link TL-WR841NEPSS 0.4%CVE-2026-76650MEDIUMPre-Authentication NULL Pointer Dereference in UPnP SOAP State Variable Query Processing in TP-Link TL-WR841NEPSS 0.3%