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PatchSiren cyber security CVE debrief

CVE-2026-7162 WinFsp CVE debrief

CVE-2026-7162 is an integer overflow vulnerability with a CVSS score of 7.8 and HIGH severity. Successful exploitation could allow an attacker to achieve system-level access to the affected software. The vulnerability is classified as CWE-190. The CVSS vector is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H. This vulnerability affects system administrators and security teams responsible for the affected software.

Vendor
WinFsp
Product
Unknown
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-13
Original CVE updated
2026-07-13
Advisory published
2026-07-13
Advisory updated
2026-07-13

Who should care

System administrators and security teams responsible for the affected software should be aware of this vulnerability and take necessary actions to mitigate it. They should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. Affected operator, platform, vulnerability-management, and security-team impact should be assessed.

Technical summary

The CVE-2026-7162 vulnerability is an integer overflow issue in the affected software. The CVSS vector is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H. The weakness is classified as CWE-190. Successful exploitation could allow an attacker to achieve system-level access to the affected software. System administrators should review vendor guidance for affected software and implement necessary mitigations.

Defensive priority

High priority should be given to patching or mitigating this vulnerability due to its high severity and potential impact.

Recommended defensive actions

  • Apply patches or updates provided by the vendor
  • Implement compensating controls to limit exploitation
  • Monitor systems for suspicious activity
  • Conduct inventory checks to identify affected software
  • Review relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-07-13T04:16:29.127Z and has not been modified since then. The NVD entry is currently in the 'Received' status. Evidence is limited to CVE and NVD details. Defenders should verify system-level access claims and affected software scope with vendor guidance.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-7162 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-7162

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

  • CVE-2026-7162 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-7162

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

Supplemental references

  • Source reference

    Unverified legacy reference

    URL: https://github.com/winfsp/winfsp/releases/tag/v2.2B2

    5f57b9bf-260d-4433-bf07-b6a79e9bb7d4

  • Source reference

    Unverified legacy reference

    URL: https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-086

    5f57b9bf-260d-4433-bf07-b6a79e9bb7d4

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.