# CVE-2022-0492 — kernel **CISA KEV** > As of 2026-06-03, CVE-2022-0492 is a HIGH-severity vulnerability in kernel, CVSS v3.1 7.8, EPSS 5.5% (92.6th percentile). It is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-06-02), with a US federal remediation deadline of 2026-06-05. Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2022-0492, most recently “Linux Kernel cgroups v1 release_agent Container Escape & Privilege Escalation (CVE-2022-0492) — Added to CISA KEV (Active Exploitation)”. **Last updated:** 2026-06-03 ## What is CVE-2022-0492? A vulnerability was found in the Linux kernel’s cgroup_release_agent_write in the kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups v1 release_agent feature to escalate privileges and bypass the namespace isolation unexpectedly. The record classifies CVE-2022-0492 under weakness class [CWE-287](https://intel.threadlinqs.com/cwe/CWE-287). Its CVSS v3 base vector states that the flaw requires local access to the host, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 1682 days ago. ## Severity and exploitation probability - **CVSS v3.1 base score:** 7.8 — HIGH (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`) - **EPSS (FIRST):** 5.5% probability of exploitation in the next 30 days, higher than 92.6% of all scored CVEs - **CISA KEV:** Listed since 2026-06-02, federal remediation deadline 2026-06-05 - **Threadlinqs priority:** 9/10 — CISA KEV-listed, which Threadlinqs floors at 9 - **Published:** 2022-03-03, last modified 2026-06-03 ## Is CVE-2022-0492 being exploited? CISA added CVE-2022-0492 to the Known Exploited Vulnerabilities catalog on 2026-06-02, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2026-06-05 under BOD 22-01. Weaponised exploit code for CVE-2022-0492 is publicly available. 9 public proof-of-concept repositories are tracked for this identifier. It currently carries a trending score of 46 in the Threadlinqs vulnerability feed. - [PaloAltoNetworks/can-ctr-escape-cve-2022-0492](https://github.com/PaloAltoNetworks/can-ctr-escape-cve-2022-0492) (github) - [chenaotian/CVE-2022-0492](https://github.com/chenaotian/CVE-2022-0492) (github) - [SofianeHamlaoui/CVE-2022-0492-Checker](https://github.com/SofianeHamlaoui/CVE-2022-0492-Checker) (github) - [T1erno/CVE-2022-0492-Docker-Breakout-Checker-and-PoC](https://github.com/T1erno/CVE-2022-0492-Docker-Breakout-Checker-and-PoC) (github) - [KianaBin/CVE-2022-0492-Container-Escape](https://github.com/KianaBin/CVE-2022-0492-Container-Escape) (github) - [Trinadh465/device_renesas_kernel_AOSP10_r33_CVE-2022-0492](https://github.com/Trinadh465/device_renesas_kernel_AOSP10_r33_CVE-2022-0492) (github) - [Perimora/cve_2022_0492](https://github.com/Perimora/cve_2022_0492) (github) - [hgyc/CVE-stand](https://github.com/hgyc/CVE-stand) (github) ## Affected products and versions - **(vendor unspecified)**: kernel ## How to fix CVE-2022-0492 The record marks a vendor fix as available for CVE-2022-0492. Patch reference: [https://bugzilla.redhat.com/show_bug.cgi?id=2051505](https://bugzilla.redhat.com/show_bug.cgi?id=2051505). Vendor advisory: [https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=24f6008564183aa120d07c03d9289519c2fe02af](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=24f6008564183aa120d07c03d9289519c2fe02af). Because CVE-2022-0492 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2026-06-05. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory. ## Threat activity tracking CVE-2022-0492 1 tracked threat in the Threadlinqs corpus references CVE-2022-0492, either in the campaign’s CVE list or as an indicator on the campaign record. - [Linux Kernel cgroups v1 release_agent Container Escape & Privilege Escalation (CVE-2022-0492) — Added to CISA KEV (Active Exploitation)](https://intel.threadlinqs.com/threat/TL-2026-0662) — CRITICAL · 2026-06-02 ## Sources Enriched from CVE.org, NVD, FIRST EPSS, CISA KEV, public proof-of-concept repositories. Last verified by Threadlinqs on 2026-10-10. This product uses the NVD API but is not endorsed or certified by the NVD. **Vendor advisory and patch** - [debian.org — vendor advisory](https://www.debian.org/security/2022/dsa-5095) - [debian.org — vendor advisory (dsa 5096)](https://www.debian.org/security/2022/dsa-5096) **Mailing list and disclosure** - [lists.debian.org — mailing list](https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html) - [lists.debian.org — mailing list (msg00012)](https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html) **Other references** - [bugzilla.redhat.com](https://bugzilla.redhat.com/show_bug.cgi?id=2051505) - [git.kernel.org](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=24f6008564183aa120d07c03d9289519c2fe02af) - [packetstormsecurity.com](http://packetstormsecurity.com/files/166444/Kernel-Live-Patch-Security-Notice-LSN-0085-1.html) - [security.netapp.com](https://security.netapp.com/advisory/ntap-20220419-0002/) - [packetstormsecurity.com (Kernel Live Patch Security Notice LSN 00)](http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.html) _Showing 9 of 10 recorded references._ Canonical: https://intel.threadlinqs.com/cve/CVE-2022-0492 Full detection coverage and IOCs for threats exploiting CVE-2022-0492 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp