PatchSiren cyber security CVE debrief
CVE-2013-3897 Microsoft CVE debrief
CVE-2013-3897 is a Microsoft Internet Explorer use-after-free vulnerability that CISA added to its Known Exploited Vulnerabilities catalog. Because CISA identifies it as known exploited, defenders should treat it as a priority patching item and follow Microsoft’s update guidance.
- Vendor
- Microsoft
- Product
- Internet Explorer
- CVSS
- Unknown
- CISA KEV
- Listed
- Original CVE published
- 2022-03-03
- Original CVE updated
- 2022-03-03
- Advisory published
- 2022-03-03
- Advisory updated
- 2022-03-03
Who should care
Security teams, patch managers, and administrators responsible for Microsoft Internet Explorer or legacy Windows environments should prioritize this CVE, especially where IE remains enabled or present for compatibility reasons.
Technical summary
The available source corpus identifies CVE-2013-3897 as a Microsoft Internet Explorer use-after-free vulnerability. CISA lists it in the Known Exploited Vulnerabilities catalog, with dateAdded 2022-03-03 and dueDate 2022-03-24, and the required action is to apply updates per vendor instructions. No additional technical details are provided in the supplied sources.
Defensive priority
High. CISA inclusion in the KEV catalog indicates known exploitation and a need for prompt remediation. Use Microsoft’s guidance and prioritize affected systems still using or exposing Internet Explorer.
Recommended defensive actions
- Apply Microsoft updates per vendor instructions as soon as possible.
- Inventory systems where Internet Explorer is installed, enabled, or still relied on for compatibility.
- Reduce or eliminate Internet Explorer use where possible, especially on endpoints that no longer require it.
- Verify remediation across all affected hosts and keep the KEV catalog in your patching workflow.
- Monitor CISA and Microsoft guidance for any updates related to this CVE.
Evidence notes
This debrief is based only on the supplied CISA KEV source item and the official CVE/NVD resource links provided in the corpus. The corpus confirms the CVE identifier, Microsoft Internet Explorer as the product, the use-after-free classification, and CISA KEV timing metadata. No CVSS score or deeper exploit detail was supplied.
Official resources
-
CVE-2013-3897 CVE record
CVE.org
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CVE-2013-3897 NVD detail
NVD
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CISA Known Exploited Vulnerabilities catalog
CISA - Apply updates per vendor instructions.
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Source item URL
cisa_kev
Publicly documented in CISA’s Known Exploited Vulnerabilities catalog; no additional disclosure details were provided in the supplied corpus.