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PatchSiren cyber security CVE debrief

CVE-2024-1086 Linux CVE debrief

CVE-2024-1086 is a Linux Kernel use-after-free vulnerability that CISA added to its Known Exploited Vulnerabilities (KEV) catalog on 2024-05-30. CISA also flags known ransomware campaign use as "Known," which makes this a high-priority issue for defenders running Linux kernel-based systems or products that embed the kernel. The KEV entry sets a remediation due date of 2024-06-20 and directs organizations to apply vendor mitigations or discontinue use if mitigations are unavailable.

Vendor
Linux
Product
Kernel
CVSS
HIGH 7.8
CISA KEV
Listed
Original CVE published
2024-05-30
Original CVE updated
2024-05-30
Advisory published
2024-05-30
Advisory updated
2024-05-30

Who should care

Security teams, Linux administrators, cloud and platform operators, and product teams that ship or depend on Linux kernel-based systems—especially where patching is controlled by a downstream vendor or distribution.

Technical summary

The supplied source corpus identifies CVE-2024-1086 as a Linux Kernel use-after-free vulnerability. CISA classifies it as a known exploited vulnerability and notes known ransomware campaign use. CISA’s notes also reference a Linux kernel git commit for more information, and advise organizations to follow vendor mitigation guidance or stop using the product if mitigations are unavailable.

Defensive priority

Critical

Recommended defensive actions

  • Inventory Linux kernel-based systems and identify which products or distributions include the affected kernel component.
  • Check vendor and distribution advisories for patch, mitigation, or backport status.
  • Apply vendor mitigations or updates as soon as they are available.
  • If mitigations are unavailable, follow CISA guidance to discontinue use of the affected product where feasible.
  • Prioritize internet-facing, production, and ransomware-sensitive environments for immediate review.

Evidence notes

Evidence is limited to the supplied CISA KEV metadata and official reference links. The KEV feed marks CVE-2024-1086 as known exploited, lists known ransomware campaign use as "Known," and sets dateAdded to 2024-05-30 with dueDate 2024-06-20. The source-item notes also reference a Linux kernel git commit and the NVD detail page for further context. No CVSS score was supplied in the corpus.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-1086 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-1086

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2024-1086 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-1086

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

    cisa_kev

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.