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PatchSiren cyber security CVE debrief

CVE-2014-2817 Microsoft CVE debrief

CVE-2014-2817 is a Microsoft Internet Explorer privilege escalation vulnerability that CISA lists in its Known Exploited Vulnerabilities catalog. For defenders, the key takeaway is that this issue is treated as known-exploited and should be prioritized for patching and validation against vendor guidance. The supplied source set does not include a CVSS score, so operational priority here should be driven by KEV status and asset exposure rather than score alone.

Vendor
Microsoft
Product
Internet Explorer
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

Security and endpoint teams responsible for Microsoft Internet Explorer on managed Windows systems, especially organizations that still support legacy IE usage or compatibility modes. Incident response and vulnerability management teams should also track this item because CISA has marked it as known exploited.

Technical summary

The provided sources identify CVE-2014-2817 as a Microsoft Internet Explorer privilege escalation vulnerability. CISA’s KEV catalog lists the vulnerability and sets a remediation due date of 2022-06-15, with the required action stated as applying updates per vendor instructions. No further technical details are present in the supplied corpus, so no exploitation mechanics or impact specifics should be assumed beyond the vendor/product and KEV classification.

Defensive priority

High. CISA KEV inclusion indicates known exploitation and warrants urgent remediation on exposed or supported systems.

Recommended defensive actions

  • Apply Microsoft updates and remediation guidance for Internet Explorer as directed by the vendor.
  • Verify which endpoints or environments still have Internet Explorer installed, enabled, or reachable through legacy compatibility configurations.
  • Prioritize remediation on internet-facing, high-privilege, and broadly deployed systems.
  • Confirm compliance against the CISA KEV due date and escalate any overdue assets.
  • Use the CVE record and NVD entry to cross-check product scope and tracking in your vulnerability management workflow.

Evidence notes

Evidence is limited to official records and the CISA KEV source item. The source item metadata identifies Microsoft Internet Explorer and states: dateAdded 2022-05-25, dueDate 2022-06-15, knownRansomwareCampaignUse Unknown, and requiredAction 'Apply updates per vendor instructions.' The NVD note links to the CVE detail page, and the CVE.org record is available for reference. No CVSS score or detailed exploit description was provided in the corpus.

Sources and references

Verified primary and authoritative sources

  • CVE-2014-2817 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2014-2817

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

  • CVE-2014-2817 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2014-2817

    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.