CVE Tools
Sign in

CVE-2022-0847

Published: Mar 7, 2022Updated: Nov 6, 2025 Sources: CVE List NVD BDU csafCWE-665
NVD MITRE
7.8CVSSHIGH
EPSS Score
89.1%
Top 0.2%
CISA KEV
Active Exploitation
Since Apr 25, 2022
Exploits
4 Known
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-665

Affected Products

linux kernellinux
On-premOS
Operating Systems
fedorafedoraproject
On-premOS
Operating Systems / linux-distro
enterprise linuxredhat
On-premOS
Operating Systems / linux-distro
enterprise linux eusredhat
OS
Operating Systems / linux-distro
enterprise linux for ibm z systemsredhat
On-premOS
Operating Systems / linux-distro
linuxoss-projectOperating Systemsaka the linux kernel
fedoraprojectoss-projectUSOperating Systemsaka fedora project
redhatcommercialUSOperating Systemsaka red hat
and 55 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Apr 25, 2022
Remediation due:May 16, 2022

Required action: Apply updates per vendor instructions.

4 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

http://packetstormsecurity.com/files/166229/Dirty-Pipe-Linux-Privilege-Escalation.html
packetstormsecurity.com
http://packetstormsecurity.com/files/166230/Dirty-Pipe-SUID-Binary-Hijack-Privilege-Escalation.html
packetstormsecurity.com
http://packetstormsecurity.com/files/166258/Dirty-Pipe-Local-Privilege-Escalation.html
packetstormsecurity.com
and 59 more references View all →

Timeline

Published
Mar 7, 2022
Added to CISA KEV
Apr 25, 2022
Last Updated
Nov 6, 2025

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2022-0847 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows