CVE-2022-3636

Name: CVE-2022-3636
Creator: NVD / NIST
Published: 2022-10-21T11:15:09.633+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.33%

Last modified Jun 17, 2026

CVE-2022-3636 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A vulnerability, which was classified as critical, was found in Linux Kernel. This affects the function __mtk_ppe_check_skb of the file drivers/net/ethernet/mediatek/mtk_ppe.c of the component Ethernet Handler. EPSS estimates a 0.33% chance of exploitation in the next 30 days.

Description

A vulnerability, which was classified as critical, was found in Linux Kernel. This affects the function __mtk_ppe_check_skb of the file drivers/net/ethernet/mediatek/mtk_ppe.c of the component Ethernet Handler. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-211935.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.33%

24.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	All versions
Debian	Debian Linux	11.0

References

https://git.kernel.org/pub/scm/linux/kernel/git/pabeni/net-next.git/commit/?id=17a5f6a78dc7b8db385de346092d7d9f9dc24df6Mailing List, Patch, Vendor Advisory
https://vuldb.com/?id.211935Permissions Required, Third Party Advisory
https://www.debian.org/security/2023/dsa-5333Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/pabeni/net-next.git/commit/?id=17a5f6a78dc7b8db385de346092d7d9f9dc24df6Mailing List, Patch, Vendor Advisory
https://vuldb.com/?id.211935Permissions Required, Third Party Advisory
https://www.debian.org/security/2023/dsa-5333Third Party Advisory

Timeline

Published: Oct 21, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-3636?

How severe is CVE-2022-3636?

CVE-2022-3636 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.

How do I fix CVE-2022-3636?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-3636?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST