Vulnerability

CVE-2022-0185

High· 8.4KEVCVSS8.4EPSS25%

.rules3/5

Linux Kernel Heap-Based Buffer Overflow Vulnerability

Linux kernel contains a heap-based buffer overflow vulnerability in the legacy_parse_param function in the Filesystem Context functionality. This allows an attacker to open a filesystem that does not support the Filesystem Context API and ultimately escalate privileges.

Threat signal

98/100

Severe

Severity

high

CVSS

8.4

EPSS

25%

Active

KEV

CISA KEV — actively exploited

643d overdue

AffectedLinux — Kernel

Added to KEV

2024-08-21

Federal patch due (BOD 22-01)

2024-09-11

Required action (CISA verbatim)

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

Vendor advisory + references

CISA description: “Linux kernel contains a heap-based buffer overflow vulnerability in the legacy_parse_param function in the Filesystem Context functionality. This allows an attacker to open a filesystem that does not support the Filesystem Context API and ultimately escalate privileges.”

CVSS

v3.1Open in FIRST calculator →

8.4/ 10HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorLocalRequires local access — shell, console, or local app.
Attack ComplexityLowNo special conditions — exploit works reliably.
Privileges RequiredNoneUnauthenticated — no credentials needed.
User InteractionNoneFully automated — no victim action needed.
ScopeUnchangedImpact contained to the vulnerable component.
Confidentiality ImpactHighTotal disclosure of sensitive data.
Integrity ImpactHighTotal compromise of integrity — full data modification possible.
Availability ImpactHighTotal loss of availability — full DoS possible.

EPSS

Exploit prediction · 30-day horizonFIRST.org →

25.1%

probability of exploitation in next 30 days

p98

higher than 98% of all CVEs

6-day trend↑ 23.2pp

Above the FIRST 'patch on a priority schedule' threshold.

Vendor VEX

No VEX statements published for CVE-2022-0185. Vendors publish VEX (Vulnerability Exploitability eXchange) to assert per-product whether a CVE is actually exploitable in their distribution.

SSVCAct

Active exploitation with total impact on essential/support systems

exploitation: active
automatable: yes
impact: total
mission: support

Lifecycle

2022-01-28Vendor advisory · amazon-linuxAL2-ALAS2KERNEL-5.10-2022-009-(important):-kernel — ALAS2KERNEL-5.10-2022-009 (important): kernel
2022-01-28Vendor advisory · amazon-linuxAL2-ALAS2KERNEL-5.4-2022-021-(important):-kernel — ALAS2KERNEL-5.4-2022-021 (important): kernel
2022-03-08Vendor advisory · amazon-linuxAL2-ALAS2LIVEPATCH-2022-076-(important):-kernel-livepa — ALAS2LIVEPATCH-2022-076 (important): kernel-livepatch-5.10.82-83.359
2024-08-21Added to CISA KEVransomware: Unknown
2024-08-21Published
2024-09-11Federal patch due (BOD 22-01)
2026-06-15Last modified1 source

Entity graph

4 nodes · 3 edges · click to pivot

CVEActorVendor advisoryIOCNews

Vendor advisories

No source-event history recorded yet. New revisions will appear here as ingestors re-fetch this CVE.