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Public proof of conceptFix available

CVE-2022-1043

A public proof of concept exists; no exploitation attested.

  • Published2022-08-29
  • Fixed in5.13.13 · 5.10.61
  • WeaknessCWE-416

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

A flaw was found in the Linux kernel’s io_uring implementation. This flaw allows an attacker with a local account to corrupt system memory, crash the system or escalate privileges.

Timeline

dates in UTC
  1. 2022-08-2915:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-04 09:37 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-2022-1043?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-1043?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.x≥ 5.11, < 5.13.135.13.13
5.10≥ 5.10.51, < 5.10.615.10.61

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

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

  • linuxDebian:14all versions · fixed in 5.14.6-1
  • linuxDebian:13all versions · fixed in 5.14.6-1
  • linuxDebian:12all versions · fixed in 5.14.6-1
  • linux-azureUbuntu:18.04:LTSall versions · no fixed version listedand 12 other packages
  • linux-hwe-edgeUbuntu:16.04:LTSall versions · no fixed version listed
  • linux-riscvUbuntu:20.04:LTSall versions · no fixed version listedand 17 other packages

Vendor advisories

  • CVE-2022-1043 Red Hat Product Security

    kernel: Linux Kernel io_uring Use-After-Free Privilege Escalation Vulnerability

Full record on NVD

Fix

  1. Update Linux linux kernel to 5.13.13 · 5.10.61

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
1 moduleexploit/linux/local/cve_2022_1043_io_uring_priv_escrank: greatModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

Sources

  • NVDCVSS 3.18.8read 2026-10-23
  • CNAweakness (CWE)CWE-416known since 2026-10-23
  • NVDweakness (CWE)CWE-416read 2026-10-23
  • FIRST EPSSEPSS score3.9 %2026-11-03
  • Metasploit FrameworkMetasploit modules1known since 2026-11-01
  • OSVaffected packages—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Published
2022-08-29
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2022-1043?

A flaw was found in the Linux kernel’s io_uring implementation. This flaw allows an attacker with a local account to corrupt system memory, crash the system or escalate privileges.

Is CVE-2022-1043 actively exploited?

Active exploitation of CVE-2022-1043 has not been confirmed. Its EPSS score was 3.9% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-1043?

CVE-2022-1043 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

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Sources for this record