Exploited vulnerability · CISA KEV

Is CVE-2022-0185 exploited? Yes: in CISA KEV since 21 Aug 2024

Gociux · Linux Kernel · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2022-0185, Linux Kernel Heap-Based Buffer Overflow Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 21 Aug 2024, 922 days after it was published. It affects Linux Kernel. If you run it, CISA's required action is: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

exploitedYesCISA KEV · 21 Aug 2024

ransomwareNot knownno confirmed use

EPSStop 5%very likely to be exploited

severity8.4CVSS 3.1 · high

US federal due11 Sep 2024BOD 22-01 deadline

What it is

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.

Vendor	Linux (32 exploited CVEs in KEV)
Product	Kernel
Vulnerability	Linux Kernel Heap-Based Buffer Overflow Vulnerability
Weakness	CWE-190
Published	11 Feb 2022
Added to KEV	21 Aug 2024
Reported by (CNA)	redhat

What to do

Check whether you run it. Look for Kernel in your asset inventory, including appliances and cloud images. Stack check lists every exploited Linux CVE at once.
Apply the fix. Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.
If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 11 Feb 2022.
Get told next time. Email alerts when CISA adds a CVE for Linux.

Other exploited CVEs in Kernel

CVE-2026-46300: Linux Kernel Missing Initialization of a Variable Vulnerability (28 Oct 2026)
CVE-2025-39964: Linux Kernel Race Condition Vulnerability (18 Sep 2026)
CVE-2026-53266: Linux Kernel Out-of-Bounds Write Vulnerability (18 Sep 2026)
CVE-2025-39682: Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability (18 Sep 2026)
CVE-2026-53362: Linux Kernel Unspecified Vulnerability (27 Aug 2026)
CVE-2022-0995: Linux Kernel Out-of-Bounds Write Vulnerability (26 Aug 2026)

References

nvd.nist.gov/vuln/detail/CVE-2022-0185

Questions

Is CVE-2022-0185 being exploited?

Yes. CISA added CVE-2022-0185 to the Known Exploited Vulnerabilities catalog on 21 Aug 2024, which means there is reliable evidence of exploitation in the wild.

Is CVE-2022-0185 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2022-0185?

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable. Check Linux's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Kernel and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in August 2024 · Linux scorecard · act-now radar.

Running Linux in a regulated environment?

We check exposure across your estate, patch or mitigate with your team, and set up detection for what attackers do after exploiting it.

Get in touch →