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PatchSiren cyber security CVE debrief

CVE-2024-38193 Microsoft CVE debrief

CVE-2024-38193 is a Microsoft Windows privilege escalation vulnerability in the Ancillary Function Driver for WinSock. CISA added it to the Known Exploited Vulnerabilities catalog on 2024-08-13, which makes this a high-priority remediation item for Windows environments.

Vendor
Microsoft
Product
Windows
CVSS
HIGH 7.8
CISA KEV
Listed
Original CVE published
2024-08-13
Original CVE updated
2024-08-13
Advisory published
2024-08-13
Advisory updated
2024-08-13

Who should care

Windows administrators, endpoint and vulnerability management teams, SOC analysts, and any organization running Microsoft Windows systems should treat this as a priority, especially because CISA lists it in the Known Exploited Vulnerabilities catalog.

Technical summary

The supplied corpus identifies this issue as a Microsoft Windows Ancillary Function Driver for WinSock privilege escalation vulnerability. No CVSS score, affected-version list, or deeper technical description is included in the provided source set. The strongest available signal is CISA KEV inclusion on 2024-08-13, which indicates the vulnerability is known to be exploited and should be addressed using vendor guidance.

Defensive priority

High. KEV-listed vulnerabilities are time-sensitive, and the supplied CISA metadata sets a remediation due date of 2024-09-03.

Recommended defensive actions

  • Review Microsoft’s update guidance for CVE-2024-38193 in the Microsoft Security Response Center update guide.
  • Apply vendor mitigations or patches as soon as possible across all Windows assets.
  • Prioritize remediation for internet-connected, high-value, and user-facing Windows endpoints first.
  • Verify asset inventory so all Windows systems are included in the remediation scope.
  • If mitigations are unavailable on any system, follow CISA guidance to discontinue use of the product until it can be updated.
  • Monitor Windows environments for unusual privilege escalation behavior as part of normal endpoint and identity monitoring.

Evidence notes

This debrief is based only on the supplied source corpus: the CISA KEV entry, the CVE record reference, and the NVD detail link metadata. The corpus provides the CVE title, the KEV addition date of 2024-08-13, the remediation due date of 2024-09-03, and the fact that the known ransomware campaign use is listed as Unknown. No CVSS score or affected-version list was supplied, so those details are not asserted here.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-38193 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-38193

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

  • CVE-2024-38193 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-38193

    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.