Medium severity · published Aug 28, 2026
CVE-2026-76650
Pre-Authentication NULL Pointer Dereference in UPnP SOAP State Variable Query Processing in TP-Link TL-WR841N
5.3
CVSS
0.3%
EPSS
No
On KEV
Description
A NULL
pointer dereference vulnerability exists in TL-WR841N v14 in the UPnP service when processing
SOAP state variable query requests. A specially crafted SOAP query may trigger
unexpected termination or instability of the process hosting the UPnP service.
Successful
exploitation may result in a denial-of-service condition affecting UPnP
discovery, state query, or related management functionality until the affected
process is restarted or the device is rebooted.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 19% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TV
TL-WR841N v14 · TP-Link System Inc.
before TL-WR841N(US)_V14_4.19 Build 260820 Rel.33478; before TL-WR841N(EU)_V14_4.19 Build 260821 Rel.56588 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-76650
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-76650
www.tp-link.com
https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware
www.tp-link.com
https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware
www.tp-link.com
https://www.tp-link.com/us/support/faq/5270/
More from TL-WR841N v14
8.5
CVE-2026-102294
Authenticated OS Command Injection in TL-WR841N IPv6 WAN Configuration
5.3
CVE-2026-76651
Pre-Authentication Multipart Boundary Buffer Overflow in HTTP Service in TP-Link TL-WR841N
5.3
CVE-2026-76649
Pre-Authentication NULL Pointer Dereference in UPnP SOAP Action Request Processing in TP-Link TL-WR841N