Exploited· due 2026-09-097.8highHigh

CVE-2022-0995

Linux Linux 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.

Exploitation status

CISA has confirmed this is being exploited in the wild. That is an observation of real attacks, not a prediction.
US federal civilian agencies are required to remediate it by 2026-09-09. That deadline does not bind private companies, but it is a reasonable benchmark for how urgently CISA views it.
A vendor advisory or patch reference has been published.

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.

CISA’s wording, unedited.

What the metrics mean

It is requires local access to the machine.
For an attacker who can reach it, no special conditions are needed to exploit it.
To exploit it, an ordinary user account is needed.
Beyond that, no action by a user is required.

Scoring

CVSS: 7.8 (v3.1)
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-787
Assigned by: secalert@redhat.com

Dates

Published: 2022-03-25
Last modified: 2026-08-27
Added to KEV: 2026-08-26
Remediation due: 2026-09-09
Sources: CISA KEV, NVD

Affected products

Linux Linux Kernel5.8 - 5.10.106, 5.11 - 5.15.29, 5.16 - 5.16.5, 5.17
Fedoraproject Fedora35
Netapp H300e Firmwareall versions
Netapp H300eall versions
Netapp H300s Firmwareall versions
Netapp H300sall versions
Netapp H410c Firmwareall versions
Netapp H410call versions
Netapp H410s Firmwareall versions
Netapp H410sall versions
Netapp H500e Firmwareall versions
Netapp H500eall versions

As listed in the NVD configuration data. Not a statement about your estate.