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ExploitedIn CISA KEVFix available

CVE-2022-0995

Exploitation confirmed. First attested on 2026-08-26 by CISA-ADP, CISA KEV, GCVE · previdian.

  • Published2022-03-25
  • Fixed in5.16.5 · 5.15.29 · 5.10.106
  • WeaknessCWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2022-03-2519:15CVE publishedNVD
  2. 2026-08-26Added to the CISA KEV catalogCISA KEV
  3. 2026-08-26Listed as exploited by GCVEGCVE
  4. 2026-08-26Exploitation first reportedCISA KEV
  5. 2026-08-2617:44SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-0995?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-0995?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Linux linux kernel
BranchAffectedFixed in
5.16≥ 5.16, < 5.16.55.16.5
5.x≥ 5.11, < 5.15.295.15.29
5.x≥ 5.8, < 5.10.1065.10.106
5.17= 5.17no fix published
Fedoraproject fedora
BranchAffectedFixed in
35.x= 35no fix published
Netapp h300e firmwareversion to verify
BranchAffectedFixed in
—all versionsno fix published

10 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As redhat, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • kernel
    Affected
    • = kernel 5.17 rc8no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2022-04-29

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • :linux_kernel:Androidfrom :0 · fixed in :2022-08-05
  • kernelMageia:8all versions · fixed in 5.15.32-1.mga8and 1 other package
  • kernelAzure Linux:2all versions · fixed in 5.15.32.1-3
  • kernel-64kbSUSE:Linux Enterprise Server 15 SP5-LTSSall versions · fixed in 5.14.21-150500.55.100.1and 6 other packages
  • kernel-64kbSUSE:Linux Enterprise Server 15 SP4-LTSSall versions · fixed in 5.14.21-150400.24.158.1and 6 other packages
  • kernel-64kbSUSE:Linux Enterprise High Performance Computing 15 SP5-LTSSall versions · fixed in 5.14.21-150500.55.100.1and 5 other packages
  • kernel-64kbSUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSall versions · fixed in 5.14.21-150500.55.100.1and 5 other packages
  • kernel-64kbSUSE:Linux Enterprise High Performance Computing 15 SP4-LTSSall versions · fixed in 5.14.21-150400.24.158.1and 5 other packages

154 more package ranges on OSV.dev

Vendor advisories

  • CVE-2022-0995 Red Hat Product Security

    kernel: kernel bug in the watch_queue subsystem

Full record on NVD

Fix

  1. Update Linux linux kernel to 5.16.5 · 5.15.29 · 5.10.106
  2. CISA’s 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.due 2026-09-09

Advisories and patches

Detection

read 2026-11-02 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
4 repositories, unverifiedBonfee/CVE-2022-0995AndreevSemen/CVE-2022-09951nzag/CVE-2022-0995A1b2rt/cve-2022-0995
PoC-in-GitHub
Metasploit modules
1 moduleexploit/linux/local/cve_2022_0995_watch_queuerank: greatModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2026-08-26
Patch Due Date
2026-09-09
Ransomware Use
Unknown
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.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2022-03-25
Last Modified
2026-08-27
NVD status
Analyzed
GitHub Advisory
GHSA-q5p3-3mpm-hppr

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.

Is CVE-2022-0995 actively exploited?

Yes. CVE-2022-0995 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2026-09-09.

What is the CVSS score for CVE-2022-0995?

CVE-2022-0995 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record