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PatchSiren cyber security CVE debrief

CVE-2015-2360 Microsoft CVE debrief

CVE-2015-2360 is a Microsoft Win32k privilege escalation vulnerability that CISA lists in its Known Exploited Vulnerabilities catalog. The available source corpus does not include deeper technical detail, but the KEV listing means this issue has been observed as exploited in the wild and should be treated as a high-priority patching item for Windows environments.

Vendor
Microsoft
Product
Win32k
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-05-25
Original CVE updated
2022-05-25
Advisory published
2022-05-25
Advisory updated
2022-05-25

Who should care

Windows administrators, endpoint and server security teams, vulnerability management programs, and incident responders responsible for Microsoft patching and exposure tracking.

Technical summary

The supplied records identify the issue as a Microsoft Win32k privilege escalation vulnerability and place it in CISA’s KEV catalog. That combination indicates an exploitable Windows security flaw affecting the Win32k component, with remediation expected via vendor updates. The corpus does not provide additional mechanism details, so the safest defensive assumption is that a compromised local foothold could be leveraged to gain higher privileges on affected systems.

Defensive priority

Urgent. KEV-listed vulnerabilities require prompt remediation because they are known to be exploited. Use the vendor’s updates and verify coverage across all supported Windows assets.

Recommended defensive actions

  • Apply Microsoft updates per vendor instructions as soon as possible.
  • Confirm all supported Windows systems are inventoried and included in patch cycles.
  • Prioritize exposed endpoints and servers that have not yet received the relevant security updates.
  • Validate remediation status using vulnerability management or endpoint compliance tooling.
  • Monitor for signs of privilege escalation or unusual post-exploitation activity on Windows hosts.
  • Track CISA KEV deadlines and ensure remediation is completed before or by the due date when feasible.

Evidence notes

CISA’s KEV entry names the issue as a Microsoft Win32k privilege escalation vulnerability and sets dateAdded to 2022-05-25 with dueDate 2022-06-15. The source item metadata also instructs: "Apply updates per vendor instructions." The supplied corpus does not include a vendor advisory or CVSS score, so no more specific technical claims are made here.

Sources and references

Verified primary and authoritative sources

  • CVE-2015-2360 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2015-2360

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

  • CVE-2015-2360 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2015-2360

    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.