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PatchSiren cyber security CVE debrief

CVE-2016-3235 Microsoft CVE debrief

CVE-2016-3235 is a Microsoft Office vulnerability described as an OLE DLL side loading issue and listed by CISA in the Known Exploited Vulnerabilities catalog. That KEV listing means it is considered known exploited and should be treated as a patching priority for environments that use Microsoft Office.

Vendor
Microsoft
Product
Office
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2021-11-03
Original CVE updated
2021-11-03
Advisory published
2021-11-03
Advisory updated
2021-11-03

Who should care

Security, IT, and endpoint management teams responsible for Microsoft Office deployments should care, especially if Office is broadly installed across managed workstations or business-critical endpoints.

Technical summary

Based on the supplied official metadata, this issue affects Microsoft Office and is categorized by CISA as a known exploited vulnerability. The available source corpus does not provide additional technical detail beyond the vulnerability name and the instruction to apply updates per vendor guidance.

Defensive priority

High. Because CISA lists this CVE in KEV, remediation should be prioritized over routine backlog work.

Recommended defensive actions

  • Apply Microsoft updates per vendor instructions.
  • Inventory Microsoft Office installations to confirm exposure.
  • Validate that remediation has been applied across all managed endpoints.
  • Track the CISA KEV catalog and NVD record for any additional official guidance.

Evidence notes

This debrief is grounded in the supplied CISA KEV metadata and the official CVE/NVD resource links. The corpus provided no exploit details, attack chain, or mitigation specifics beyond the vendor update guidance.

Sources and references

Verified primary and authoritative sources

  • CVE-2016-3235 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2016-3235

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

  • CVE-2016-3235 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2016-3235

    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.