Threats / Linux / CVE-2022-0185
CVE-2022-0185
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Linux Kernel vulnerability
Linux kernel heap-based buffer overflow in legacy_parse_param function within Filesystem Context functionality enables privilege escalation via crafted filesystem operations.
Verdict
Today item — known-exploited.
A heap buffer overflow in the Linux kernel's filesystem context parsing allows local attackers to escalate privileges. The vulnerability is triggered when opening filesystems that lack Filesystem Context API support, enabling memory corruption and code execution.
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
4 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 2024-08-21).
Probability (EPSS)
EPSS 0.25151 — 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-190 Integer Overflow — weakness family: Memory safety.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 craft a malicious filesystem or mount request targeting the legacy_parse_param function to trigger a heap buffer overflow.
Business
An unprivileged local user gains kernel-level code execution, compromising system integrity and enabling full system compromise.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I exploit the memory corruption to overwrite heap structures and redirect execution flow to my payload.
Business
Attackers bypass all privilege boundaries, gaining root access and ability to persist, exfiltrate data, or deploy malware across the infrastructure.
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