What is CVE-2022-0847?

CVE-2022-0847 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10. CVE-2022-0847 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild.

What is the CVSS score for CVE-2022-0847?

CVE-2022-0847 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2022-0847?

No patch is currently available for CVE-2022-0847. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2022-0847 actively exploited?

Yes — CVE-2022-0847 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild with a CVSS score of 7.8 (High severity).

CVE-2022-0847

High KEV — Actively Exploited

A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.

Package Linux Kernel

Published 2022-03-10

Last modified 2025-11-06

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-665

CVE-2022-0847 is classified as CWE-665

See CWE-665 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2022-0847 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Packet Storm
http://packetstormsecurity.com/files/166229/Dirty-Pipe-Linux-Privilege-Escalation.html

Exploit Third Party Advisory VDB Entry
Packet Storm
http://packetstormsecurity.com/files/166230/Dirty-Pipe-SUID-Binary-Hijack-Privilege-Escalation.html

Exploit Third Party Advisory VDB Entry
Packet Storm
http://packetstormsecurity.com/files/166258/Dirty-Pipe-Local-Privilege-Escalation.html

Exploit Third Party Advisory VDB Entry
Packet Storm
http://packetstormsecurity.com/files/176534/Linux-4.20-KTLS-Read-Only-Write.html

Third Party Advisory VDB Entry
Cert-Portal
https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf

Third Party Advisory
Dirtypipe
https://dirtypipe.cm4all.com/

Exploit Third Party Advisory
Psirt
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015

Third Party Advisory
Security
https://security.netapp.com/advisory/ntap-20220325-0005/

Third Party Advisory
SUSE
https://www.suse.com/support/kb/doc/?id=000020603

Third Party Advisory
CISA
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0847

US Government Resource
Kernel patch commit
https://bugzilla.redhat.com/show_bug.cgi?id=2060795
Patch

Details

CVE ID CVE-2022-0847

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2022-03-10

Modified 2025-11-06

KEV Yes

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2022-0847?

CVE-2022-0847 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2022-0847 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild.
What is the CVSS score for CVE-2022-0847?

CVE-2022-0847 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2022-0847?

No patch is currently available for CVE-2022-0847. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2022-0847 actively exploited?

Yes — CVE-2022-0847 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. It carries a CVSS score of 7.8 (High severity).