Threats / Linux / CVE-2022-0847
CVE-2022-0847
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Linux Kernel vulnerability
Linux kernel improper initialization vulnerability allowing unprivileged local users to escalate privileges through memory corruption.
Verdict
Today item — known-exploited.
Dirty Pipe is a local privilege escalation vulnerability in the Linux kernel affecting systems where unprivileged users have shell access. Active exploitation in the wild and high EPSS score indicate significant risk to multi-user systems and containerized environments.
01
Is it exploitable?
— the evidence, ranked above the scoreExploit available
Fully weaponized — public exploit code is cataloged for this vulnerability.We link the existence of the exploit; we do not host or redistribute payloads.
Reported exploitation
11 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-04-25).
Probability (EPSS)
EPSS 0.89063 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Linux, Kernel. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-665 Improper Initialization — weakness family: Resource / availability.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I gain shell access as an unprivileged local user on a Linux system.
Business
An attacker establishes initial foothold on a system through compromised credentials or application vulnerability.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I exploit the kernel's improper memory initialization to write data to read-only memory regions.
Business
The vulnerability enables direct kernel memory manipulation without requiring elevated privileges.
3
Lateral reach — past segmentation narrative 3
Attacker
I escalate my privileges to root by modifying kernel structures or executable files.
Business
The attacker gains full system control, compromising confidentiality, integrity, and availability of all hosted services and data.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05