CVE-2022-0185
CWE-190
94.4
RPSRPS range: 0–105; KEV-listed vulnerabilities can receive an exploitation amplifier.
Description
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.
Source: NVD
Signals
- CVSS
- 8.4
- High · v3.1
- EPSS
- 25.15%
- Probability of exploitation in the next 30 days (FIRST)
- CISA KEV
- In CISA KEV since Aug 2024
- Fix commit
- No known fix commit
- Sources: MoreFixes, FreshFixes
- Weakness
- CWE-190
- CWE-190, CWE-191
- Published
- 11 Feb 2022
- Last modified 6 Nov 2025
How to read these signals: RPS · EPSS · CISA KEV · Data sources
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Data as of 7 Oct 2026, 05:16 UK time