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Linux Kernel's Out-of-Bounds Write Allows Local Attackers to Escalate Privileges or Cause a Kernel Crash; CISA's September 9th KEV Deadline Has Passed

Last refreshed2026-09-27

Status: KEV  |  Advisory ID: CVE-2022-0995

Key Details

CVECVE-2022-0995
Vulnerability NameLinux Kernel Out-of-Bounds Write Vulnerability
CVSS Score / Version7.8 (High) / CVSS v3.1
Updated2026-09-22
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Proseattack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected productssee table below
Exploitation statusListed in CISA's Known Exploited Vulnerabilities (KEV) catalog, indicating confirmed active exploitation.
Classified asCWE-787 (Out-of-bounds Write)
KEV listingAdded to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2026-08-26.
Exploitation prediction (EPSS)8.79% probability of exploitation in the next 30 days (95% percentile) -- FIRST.org's EPSS model.
Federal remediation deadline2026-09-09 (CISA KEV, Binding Operational Directive).

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
LinuxKernel
LinuxLinux Kernel
fedoraprojectFedora
netappH300E Firmware
netappH300S Firmware
netappH410C Firmware
netappH410S Firmware
netappH500E Firmware
netappH500S Firmware
netappH610C Firmware
netappH610S Firmware
netappH615C Firmware
netappH700E Firmware
netappH700S Firmware
SubsystemsCore Infrastructure
SectorsAll Sectors

What to Know

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.

What to Do

Monitor Linux, fedoraproject, and netapp's web pages for any future patch releases.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2022-0995
CVEhttps://www.cve.org/CVERecord?id=CVE-2022-0995

KEV Required Action

FieldValue
KEV Linkhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog
Date Added to KEV2026-08-26
Required Action Due Date2026-09-09
Required ActionApply 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.