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PatchSiren cyber security CVE debrief

CVE-2019-0880 Microsoft CVE debrief

CVE-2019-0880 is a Microsoft Windows privilege escalation vulnerability that CISA has listed in its Known Exploited Vulnerabilities (KEV) catalog. The supplied KEV record marks the issue as known exploited and gives a remediation due date of 2022-06-13. Because the corpus does not include exploitation mechanics or affected-component detail, the safest response is to treat it as an actively abused Windows elevation-of-privilege risk and prioritize patching and validation of remediation status.

Vendor
Microsoft
Product
Windows
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-05-23
Original CVE updated
2022-05-23
Advisory published
2022-05-23
Advisory updated
2022-05-23

Who should care

Windows administrators, patch management teams, endpoint security teams, SOC and incident response staff, and any organization operating Microsoft Windows systems.

Technical summary

The available source material identifies the issue only as a Microsoft Windows privilege escalation vulnerability. CISA’s KEV entry indicates known exploitation, but the provided corpus does not describe attack prerequisites, affected components, or exploit behavior. Defensive handling should therefore focus on rapid update deployment, exposure review, and confirmation that remediation is complete across Windows assets.

Defensive priority

High. A CISA KEV listing means this vulnerability should be treated as urgent, especially on internet-facing, user-facing, or privileged Windows endpoints. The supplied KEV due date was 2022-06-13.

Recommended defensive actions

  • Apply Microsoft updates and remediation guidance for CVE-2019-0880 as soon as possible.
  • Confirm Windows asset inventory and verify patch status across all supported systems.
  • Prioritize systems with elevated access, broad user exposure, or business-critical roles.
  • Track remediation completion against the KEV due date and retain evidence of patching.
  • Review for signs of unauthorized privilege escalation activity on systems that were exposed before patching.

Evidence notes

CISA KEV metadata names the issue as a Microsoft Windows privilege escalation vulnerability, marks it as known exploited, and specifies 'Apply updates per vendor instructions.' The official CVE and NVD links are included as record references. The supplied record dates are 2022-05-23 for published and modified timestamps, and CISA lists known ransomware campaign use as unknown.

Sources and references

Verified primary and authoritative sources

  • CVE-2019-0880 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2019-0880

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

  • CVE-2019-0880 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2019-0880

    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.