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PatchSiren cyber security CVE debrief

CVE-2022-26925 Microsoft CVE debrief

CVE-2022-26925 is a Microsoft Windows LSA spoofing vulnerability that CISA added to its Known Exploited Vulnerabilities catalog on 2022-07-01. Because it is a KEV-listed issue, defenders should treat it as actively exploited and prioritize remediation. CISA’s entry calls for applying the remediation actions in its Microsoft patch guidance, with a due date of 2022-07-22. CISA also warns that the update is required on all Windows endpoints, but deployment to domain controllers without additional configuration changes can break PIV/CAC authentication.

Vendor
Microsoft
Product
Windows
CVSS
HIGH 8.1
CISA KEV
Listed
Original CVE published
2022-07-01
Original CVE updated
2022-07-01
Advisory published
2022-07-01
Advisory updated
2022-07-01

Who should care

Windows administrators, endpoint security teams, and identity/infrastructure operators should care, especially organizations running Microsoft Windows domain controllers or environments that use PIV/CAC authentication.

Technical summary

The supplied source corpus identifies the issue as a Microsoft Windows LSA spoofing vulnerability. The KEV entry does not provide deeper exploit mechanics, but it does establish that the flaw has known exploitation, applies to Microsoft Windows endpoints, and requires careful deployment in domain-controller environments due to potential PIV/CAC authentication impact.

Defensive priority

High: prioritize immediate remediation across Windows endpoints, with extra validation and change planning for domain controllers.

Recommended defensive actions

  • Review CISA’s Microsoft patch guidance referenced in the KEV entry before deployment.
  • Apply the remediation to Windows endpoints as required by CISA.
  • For domain controllers, verify any additional configuration changes needed before rollout to avoid breaking PIV/CAC authentication.
  • Use standard change management and post-patch validation to confirm authentication services remain functional.
  • Track completion against the CISA due date of 2022-07-22 for KEV compliance.

Evidence notes

Evidence is limited to the supplied official records and metadata: the CISA KEV feed entry, the CVE record reference, and the NVD reference. The KEV metadata explicitly states that the update is required on all Microsoft Windows endpoints and warns that deployment to domain controllers without additional configuration changes can break PIV/CAC authentication. No CVSS score was provided in the supplied data.

Sources and references

Verified primary and authoritative sources

  • CVE-2022-26925 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2022-26925

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

  • CVE-2022-26925 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2022-26925

    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.