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PatchSiren cyber security CVE debrief

CVE-2015-1770 Microsoft CVE debrief

CVE-2015-1770 is a Microsoft Office uninitialized memory use vulnerability that CISA has listed in its Known Exploited Vulnerabilities catalog. That makes it a defensive priority for patching and validation, even though the supplied corpus does not include deeper technical or impact details. Follow Microsoft’s update guidance and treat affected Office installations as urgent remediation targets.

Vendor
Microsoft
Product
Office
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-03-28
Original CVE updated
2022-03-28
Advisory published
2022-03-28
Advisory updated
2022-03-28

Who should care

Microsoft Office administrators, endpoint and vulnerability management teams, SOC analysts, and IT patch owners should care most. Any environment with Office deployments should confirm whether Microsoft’s fixes have been applied and verified.

Technical summary

The supplied sources identify this issue as an uninitialized memory use vulnerability in Microsoft Office. CISA’s KEV entry indicates it is known to be exploited in the wild and directs defenders to apply vendor updates. The provided corpus does not include affected versions, attack surface details, or CVSS scoring, so remediation guidance should be based on the official Microsoft and CISA references.

Defensive priority

High. Because CISA added this CVE to KEV, it should be prioritized for immediate remediation and confirmation of patch deployment.

Recommended defensive actions

  • Inventory Microsoft Office deployments across the environment.
  • Apply Microsoft’s updates and remediation guidance for CVE-2015-1770.
  • Prioritize systems used by high-risk users and any systems with broad document-handling exposure.
  • Verify patch installation and confirm the vulnerable condition is removed.
  • Track this CVE against the CISA KEV catalog and vendor guidance until remediation is complete.

Evidence notes

The corpus is limited to official metadata from CISA KEV plus links to the CVE record and NVD entry. It confirms the vulnerability name, vendor/product, KEV status, date added, due date, and that the required action is to apply vendor updates. No CVSS score, affected versions, or exploitation details beyond KEV status are provided in the supplied sources.

Sources and references

Verified primary and authoritative sources

  • CVE-2015-1770 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2015-1770

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

  • CVE-2015-1770 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2015-1770

    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.