CVE-2022-0847VulnerabilityPublished 04/25/2022Updated 10/24/2026

CVE-2022-0847: Linux Kernel Privilege Escalation Vulnerability

Affects Linux KernelSource CISA KEV

Severity

High

No CVSS score published yet

Exploitation: Actively exploited – in CISA KEV since 04/25/2022
KEV deadline: 05/16/2022
EPSS: 92.8% chance of exploitation in 30 days – higher than 99% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2022-0847 (opens in a new tab)

Description

CVE-2022-0847, known as 'Dirty Pipe,' is a Linux kernel vulnerability that allows an unprivileged local user to escalate their privileges due to improper initialization. It has been exploited in the wild, posing a high risk to affected systems.

Summary

The Linux kernel contains an improper initialization vulnerability identified as CVE-2022-0847, or 'Dirty Pipe.' This flaw enables an unprivileged local user to escalate privileges on the system. The vulnerability has been observed in active exploitation scenarios, indicating its practical impact. No specific affected versions or patch information is provided in the input data.

Impact

An unprivileged local user can exploit this vulnerability to gain elevated privileges on the affected Linux system, potentially leading to full system compromise. The vulnerability has been exploited in the wild, confirming active threat usage.

Mitigation

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until official fixes are confirmed and applied, restrict local user access and monitor for suspicious activity related to privilege escalation attempts.

Weaknesses

CWE-665Unclassified weakness (opens in a new tab)

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 11:27:20 UTC

Weaknesses

References

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