Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.
VOLERION
Volerion Security Research

NOT DEFERRED DATABASE

VULNERABILITIES

CVE-2026-3622 Details

Description

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).

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware TPLinkProduct
https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware TPLinkProduct
https://www.tp-link.com/us/support/faq/5033/ TPLinkVendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-125Out-of-bounds ReadTPLink

Affected Products

ProductVersions
tp-link tl-wr841n firmware
< 0.9.1_4.19

CPE

  • cpe:2.3:o:tp-link:tl-wr841n_firmware:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
tp-link tl-wr841n
14

CPE

  • cpe:2.3:h:tp-link:tl-wr841n:14:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-3622
NVD Published Date:
Mar 26, 2026
NVD Last Modified:
Jun 17, 2026
Source:
TPLink