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CRITICAL

CVE-2026-86510

CVSS v3

9.9

CRITICAL

EPSS Score

0.5 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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.

Technical details

Published
2026-09-08
Last Modified
2026-09-08

Frequently asked questions

What is CVE-2026-86510?

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.

Is CVE-2026-86510 actively exploited?

Active exploitation of CVE-2026-86510 has not been confirmed. Its EPSS score was 0.5% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-86510?

CVE-2026-86510 has a CVSS v3 base score of 9.9 (CRITICAL severity).

Is CVE-2026-86510 affecting your environment?

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