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PatchSiren cyber security CVE debrief

CVE-2016-3393 Microsoft CVE debrief

CVE-2016-3393 is a Microsoft Windows Graphics Device Interface (GDI) remote code execution vulnerability. CISA includes it in the Known Exploited Vulnerabilities catalog, which means it should be treated as a high-priority remediation item. The supplied official sources identify the issue and its KEV status, but do not provide exploit mechanics, affected build details, or campaign attribution.

Vendor
Microsoft
Product
Windows
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-05-25
Original CVE updated
2022-05-25
Advisory published
2022-05-25
Advisory updated
2022-05-25

Who should care

Windows administrators, endpoint security teams, vulnerability management teams, and incident responders responsible for Microsoft Windows systems should prioritize this CVE.

Technical summary

The official record describes a Microsoft Windows Graphics Device Interface (GDI) remote code execution vulnerability. CISA's KEV catalog marks the CVE as known exploited and directs organizations to apply updates per vendor instructions. The supplied corpus does not include affected version ranges, attack prerequisites, or exploitation details, so defensive action should focus on prompt patching and verification.

Defensive priority

Urgent — this is a CISA Known Exploited Vulnerability affecting Microsoft Windows, so remediation should be prioritized immediately using vendor guidance.

Recommended defensive actions

  • Apply the relevant Microsoft security updates per vendor instructions.
  • Prioritize remediation on Windows systems that are business-critical or externally reachable.
  • Verify patch deployment across endpoints and servers, and confirm the vulnerable systems are included in remediation reporting.
  • Use vulnerability management and asset inventory data to identify any remaining Windows systems that have not been updated.
  • Monitor for signs of compromise on systems that may have been exposed before remediation.

Evidence notes

The CVE record and NVD detail page identify the vulnerability as Microsoft Windows GDI remote code execution. CISA's Known Exploited Vulnerabilities catalog confirms KEV status and specifies the required action: apply updates per vendor instructions. No further technical details were provided in the supplied corpus.

Sources and references

Verified primary and authoritative sources

  • CVE-2016-3393 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2016-3393

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

  • CVE-2016-3393 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2016-3393

    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.