Vulnerability Details CVE-2026-3622
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).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 2.9%
CVSS Severity
CVSS v3 Score 7.5
References
Products affected by CVE-2026-3622
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cpe:2.3:h:tp-link:tl-wr841n:14
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cpe:2.3:o:tp-link:tl-wr841n_firmware:-
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cpe:2.3:o:tp-link:tl-wr841n_firmware:0.9.1_4.16
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cpe:2.3:o:tp-link:tl-wr841n_firmware:0.9.1_4.18