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CVE-2014-0322 Microsoft CVE debrief

CVE-2014-0322 is a Microsoft Internet Explorer use-after-free vulnerability that CISA lists in its Known Exploited Vulnerabilities catalog. Because it is marked as known exploited, defenders should treat it as a priority remediation item and follow vendor update guidance without delay.

Vendor
Microsoft
Product
Internet Explorer
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-05-04
Original CVE updated
2022-05-04
Advisory published
2022-05-04
Advisory updated
2022-05-04

Who should care

Security, IT, and endpoint management teams responsible for Microsoft Internet Explorer deployments, especially in environments that still allow legacy browser use or depend on strict patch compliance.

Technical summary

The supplied corpus identifies the issue as a use-after-free flaw in Microsoft Internet Explorer. CISA’s KEV entry marks it as known exploited and records a required action of applying updates per vendor instructions, with a due date of 2022-05-25 in the provided metadata. The source set does not include affected-version ranges, exploit conditions, or impact details beyond the vulnerability class.

Defensive priority

High — CISA KEV-listed and therefore treated as a known exploitation risk; remediation was due by 2022-05-25 in the supplied timeline metadata.

Recommended defensive actions

  • Apply Microsoft updates per vendor instructions.
  • Inventory where Internet Explorer is still in use and prioritize those systems for remediation.
  • Verify patch deployment and endpoint compliance against the KEV due date if performing historical or current exposure checks.
  • Use the official CVE, NVD, and CISA KEV references to confirm current guidance and status.

Evidence notes

Supported by the CISA KEV source item (dateAdded 2022-05-04, dueDate 2022-05-25, requiredAction: "Apply updates per vendor instructions.") and the official CVE.org and NVD links supplied in the corpus. No additional technical details were present in the provided source items.

Official resources

Prepared from official CVE.org, NVD, and CISA KEV references supplied in the corpus only; no exploit code, weaponization details, or unsupported facts included.