CVE-2026-3622

UNKNOWN 0.0

Denial-of-Service Vulnerability in UPnP Component of TP Link's TL-WR841N

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

3th

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).

CWE	CWE-125
Vendor	tp-link systems inc.
Product	tl-wr841n v14
Published	Mar 26, 2026
Last Updated	Mar 27, 2026

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Affected Versions

TP-Link Systems Inc. / TL-WR841N v14

0 < 0.9.1 4.19

References

NVD ↗ CVE.org ↗ EPSS Data ↗

tp-link.com: https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware tp-link.com: https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware tp-link.com: https://www.tp-link.com/us/support/faq/5033/

Credits

Md Sharafatullah Zomadder, Professor Rahamatullah Khondoker, Dept. of Business Informatics, THM University of Applied Sciences, Friedberg, Germany