What is CVE-2022-3636?

CVE-2022-3636 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Buffer Overflow flaw (CWE-119), affecting Linux kernel versions from n/a onward. CVE-2022-3636 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-3636?

CVE-2022-3636 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2022-3636?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2022-3636 patch availability.

Is CVE-2022-3636 actively exploited?

CVE-2022-3636 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Buffer Overflow (CWE-119)?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/119.html

CVE-2022-3636

High

A vulnerability was identified in Linux Kernel 33fc42de33278b2b3ec6f3390512987bc29a62b7. This affects the function __mtk_ppe_check_skb of the file drivers/net/ethernet/mediatek/mtk_ppe.c of the component Ethernet Handler. Such manipulation leads to use after free. The name of the patch is 17a5f6a78dc7b8db385de346092d7d9f9dc24df6. It is best practice to apply a patch to resolve this issue. No released Linux Kernel version was ever affected by this CVE.

Package Linux Kernel

Published 2022-10-21

Last modified 2026-07-28

CVSS version 3.1

Patch available

Not yet patched

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-119

CVE-2022-3636 is a Buffer Overflow vulnerability

What is Buffer Overflow?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. Learn more on MITRE CWE

Affected versions

Linux kernel versions n/a and later are affected. No fixed version recorded yet.

Affected from

≥ n/a

References

7 total

Kernel Git
https://git.kernel.org/pub/scm/linux/kernel/git/pabeni/net-next.git/commit/?id=17a5f6a78dc7b8db385de346092d7d9f9dc24df6

Mailing List Patch Vendor Advisory
Vuldb
https://vuldb.com/cve/CVE-2022-3636
Vuldb
https://vuldb.com/vuln/211935
Vuldb
https://vuldb.com/vuln/211935/cti
Kernel.org
https://www.kernel.org/

Showing 5 of 7 references View all on NVD

Details

CVE ID CVE-2022-3636

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2022-10-21

Modified 2026-07-28

KEV No

Patch

Not yet patched

Package linux

Frequently asked questions

What is CVE-2022-3636?

CVE-2022-3636 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as a Buffer Overflow flaw (CWE-119) . It affects Linux kernel versions from n/a onward . CVE-2022-3636 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-3636?

CVE-2022-3636 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2022-3636?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2022-3636 patch availability.
Is CVE-2022-3636 actively exploited?

No. CVE-2022-3636 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.