CVE-2026-86510

Critical

Description

A vulnerability has been found in D-Link DIR-822A A_101. Affected is the function tunnel_set_params of the component L2TP Control Message Parser. Such manipulation leads to out-of-bounds write. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

SeverityCritical

CVSS9.9

Exploit probability—

Product

D-link Dir-822a

PublishedSep 8, 2026

First seenSep 8, 2026

Weakness typeCWE-787Out-of-bounds write CWE-119Memory buffer bounds error

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

Product	Affected versions	Fixed in
d-link dir-822a	A_101	—

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