What is CVE-2022-0185?

CVE-2022-0185 is a High severity Linux kernel vulnerability with a CVSS score of 8.4 out of 10, classified as a Integer Overflow flaw (CWE-190), affecting Linux kernel versions from 8.4 onward. CVE-2022-0185 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild.

What is the CVSS score for CVE-2022-0185?

CVE-2022-0185 has a CVSS score of 8.4 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2022-0185?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2022-0185 patch availability.

Is CVE-2022-0185 actively exploited?

Yes. CVE-2022-0185 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild with a CVSS score of 8.4 (High severity).

What is Integer Overflow (CWE-190)?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/190.html

CVE-2022-0185

High KEV — Actively Exploited

A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to legacy handling) could use this flaw to escalate their privileges on the system.

Package Linux Kernel

Published 2022-02-11

Last modified 2025-11-06

CVSS version 3.1

Patch available

Not yet patched

CVSS 3.1 score

8.4

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-190

CVE-2022-0185 is a Integer Overflow vulnerability

What is Integer Overflow?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. Learn more on MITRE CWE

Affected versions

Linux kernel versions 8.4 and later are affected. No fixed version recorded yet.

Affected from

≥ 8.4

References

6 total

GitHub
https://github.com/Crusaders-of-Rust/CVE-2022-0185

Exploit Third Party Advisory
Willsroot
https://www.willsroot.io/2022/01/cve-2022-0185.html

Exploit Third Party Advisory
CISA
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0185

US Government Resource
Kernel Git
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=722d94847de2

Mailing List Patch
Openwall
https://www.openwall.com/lists/oss-security/2022/01/18/7

Mailing List Patch Third Party Advisory

Showing 5 of 6 references View all on NVD

Details

CVE ID CVE-2022-0185

Severity High

CVSS score 8.4 / 10

CVSS version 3.1

Published 2022-02-11

Modified 2025-11-06

KEV Yes

Patch

Not yet patched

Package linux

Frequently asked questions

What is CVE-2022-0185?

CVE-2022-0185 is a High severity Linux kernel vulnerability with a CVSS score of 8.4 out of 10 , classified as an Integer Overflow flaw (CWE-190) . It affects Linux kernel versions from 8.4 onward . CVE-2022-0185 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild.
What is the CVSS score for CVE-2022-0185?

CVE-2022-0185 has a CVSS score of 8.4 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2022-0185?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2022-0185 patch availability.
Is CVE-2022-0185 actively exploited?

Yes. CVE-2022-0185 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. It carries a CVSS score of 8.4 (High severity).