Exploited vulnerability · CISA KEV

Is CVE-2024-1086 exploited? Yes: in CISA KEV since 30 May 2024

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

Yes. CVE-2024-1086, Linux Kernel Use-After-Free Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 30 May 2024, 120 days after it was published. It is known to be used in ransomware campaigns. It affects Linux Kernel. If you run it, CISA's required action is: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 30 May 2024

ransomwareKnownused in campaigns

EPSStop 5%very likely to be exploited

severity7.8CVSS 3.1 · high

US federal due20 Jun 2024BOD 22-01 deadline

What it is

Linux kernel contains a use-after-free vulnerability in the netfilter: nf_tables component that allows an attacker to achieve local privilege escalation.

Vendor	Linux (32 exploited CVEs in KEV)
Product	Kernel
Vulnerability	Linux Kernel Use-After-Free Vulnerability
Weakness	CWE-416
Published	31 Jan 2024
Added to KEV	30 May 2024
Reported by (CNA)	Google

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 mitigations per vendor instructions or discontinue use of the product if mitigations 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 31 Jan 2024.
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-2024-1086

Questions

Is CVE-2024-1086 being exploited?

Yes. CISA added CVE-2024-1086 to the Known Exploited Vulnerabilities catalog on 30 May 2024, which means there is reliable evidence of exploitation in the wild.

Is CVE-2024-1086 used in ransomware attacks?

Yes, CISA lists it as known to be used in ransomware campaigns.

How do I fix CVE-2024-1086?

Apply mitigations per vendor instructions or discontinue use of the product if mitigations 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 May 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 →