CVE-2022-0847
Actively exploited. CVE-2022-0847 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-04-25) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
Public exploit code is available. Proof-of-concept or working exploit code for CVE-2022-0847 is indexed in Metasploit, Exploit-DB and GitHub PoC. Expect opportunistic scanning and exploitation attempts — prioritize remediation.
Linux kernel contains an improper initialization vulnerability where an unprivileged local user could escalate their privileges on the system. This vulnerability has the moniker of "Dirty Pipe."
CSIRTS triage
- What
- An improper initialization vulnerability allows an unprivileged local user to escalate their privileges.
- Who is affected
- Users of Linux systems with the affected kernel version.
- Urgency
- Remediation is critical due to active exploitation and the severity of privilege escalation.
- Action
- Update the Linux kernel to the latest version.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 100% of all EPSS-scored CVEs.
Exploit availability
Public exploit or proof-of-concept code for CVE-2022-0847 is indexed in these free datasets. Available exploit code raises real-world risk independent of the CVSS score.
- MetasploitA Metasploit Framework module targets this CVE — weaponized, point-and-click exploitation.look it up ↗
- Exploit-DBA public exploit is published in the Exploit-DB archive.look it up ↗
- GitHub PoCPublic proof-of-concept repositories on GitHub reference this CVE.look it up ↗
Advisory coverage (1)
- criticalexploitedCVE-2022-0847: Linux Kernel Privilege Escalation Vulnerabilitycisa-kev · 2022-04-25
External references
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[](https://www.csirts.com/cve/CVE-2022-0847)