CVE-2026-3622 — HIGH (7.5) — White Hats Nepal

Q: How severe is CVE-2026-3622?

CVE-2026-3622 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-3622?

Check the references section above for vendor advisories and patch information. Affected products include: Tp-Link Tl-Wr841N Firmware, Tp-Link Tl-Wr841N.

Vulnerability 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).

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Tp-Link	Tl-Wr841N Firmware	< 0.9.1_4.19
Tp-Link	Tl-Wr841N	14

Related Weaknesses (CWE)

CWE-125

References

FAQ

What is CVE-2026-3622?

CVE-2026-3622 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 exploita...

How severe is CVE-2026-3622?

CVE-2026-3622 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-3622?

Check the references section above for vendor advisories and patch information. Affected products include: Tp-Link Tl-Wr841N Firmware, Tp-Link Tl-Wr841N.