Linux Kernel Out-of-Bounds Write Vulnerability
n/a — kernel
An out-of-bounds (OOB) memory write flaw was found in the Linux kernel’s watch_queue event notification subsystem. This flaw can overwrite parts of the kernel state, potentially allowing a local user to gain privileged access or cause a denial of service on the system.
7.8
9.5%
Vector breakdown
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Published
- Mar 25, 2022
- Modified
- Aug 27, 2026
- Added to KEV
- Aug 26, 2026
- Federal patch due
- Sep 9, 2026
CISA required action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Weakness classification
Affected packages
Proof-of-concept & exploitation references
4 foundWeaponization
Public repositories whose name or description references CVE-2022-0995, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit — cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
References
Frequently asked questions
What is CVE-2022-0995?
An out-of-bounds (OOB) memory write flaw was found in the Linux kernel’s watch_queue event notification subsystem. This flaw can overwrite parts of the kernel state, potentially allowing a local user to gain privileged access or cause a denial of service on the system.
How severe is CVE-2022-0995?
CVE-2022-0995 has a CVSS base score of 7.8 out of 10 (CVSS 3.1).
Is CVE-2022-0995 actively exploited in the wild?
Yes. CVE-2022-0995 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Aug 26, 2026, meaning CISA has confirmed evidence of active exploitation.
What is the EPSS score for CVE-2022-0995?
9.5% - meaning FIRST.org's EPSS model estimates a 9.5% probability this vulnerability will be exploited in the wild within 30 days (95% percentile among all scored CVEs).
Is there exploit tooling available for CVE-2022-0995?
We found 4 public GitHub repositories referencing CVE-2022-0995, though none matched a known Nuclei template or Metasploit module at last check. Review each one before relying on it - see the proof-of-concept section above.
What type of vulnerability is CVE-2022-0995?
CVE-2022-0995 is classified under CWE-787.
Cross-checked against
Impactr finds and proves whether CVE-2022-0995 — or flaws like it — are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.