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PatchSiren cyber security CVE debrief

CVE-2017-0037 Microsoft CVE debrief

CVE-2017-0037 is a Microsoft Edge and Internet Explorer type confusion vulnerability that CISA lists in its Known Exploited Vulnerabilities catalog. Because it is tracked as known exploited, organizations should treat it as an active defensive priority and follow Microsoft’s update guidance. The supplied corpus does not include a CVSS score or exploit details, so the safest response is to patch using vendor instructions and verify exposure in affected browsers.

Vendor
Microsoft
Product
Edge and Internet Explorer
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-03-28
Original CVE updated
2022-03-28
Advisory published
2022-03-28
Advisory updated
2022-03-28

Who should care

Security teams, endpoint and browser administrators, vulnerability management teams, and any organization that still supports Microsoft Edge or Internet Explorer on managed systems should prioritize this CVE, especially where patch compliance is monitored through KEV-driven remediation workflows.

Technical summary

The supplied sources identify the issue as a type confusion vulnerability affecting Microsoft Edge and Internet Explorer. CISA has categorized CVE-2017-0037 as a known exploited vulnerability and directs defenders to apply updates per vendor instructions. No additional technical exploit chain, impact details, or severity score are provided in the supplied corpus.

Defensive priority

High. This CVE is in CISA’s Known Exploited Vulnerabilities catalog, which makes remediation urgent for exposed systems even though the supplied corpus does not provide a CVSS score.

Recommended defensive actions

  • Apply Microsoft updates per vendor instructions for affected systems.
  • Confirm whether Microsoft Edge or Internet Explorer is present in your environment and whether any endpoints remain exposed.
  • Prioritize remediation using the CISA KEV due date of 2022-04-18 as a historical benchmark for urgency.
  • Validate patch deployment and include this CVE in vulnerability management and exception tracking workflows.
  • Review asset inventories for legacy browser dependencies that may keep Internet Explorer enabled on managed endpoints.

Evidence notes

Evidence is limited to the supplied CISA KEV source item and linked official records. The corpus identifies the CVE as 'Microsoft Edge and Internet Explorer Type Confusion Vulnerability,' marks it as a known exploited vulnerability, and includes the required action 'Apply updates per vendor instructions.' The corpus does not provide CVSS data, exploit narrative, or product-version specifics.

Official resources

CISA added this CVE to the Known Exploited Vulnerabilities catalog on 2022-03-28, with a remediation due date of 2022-04-18. The supplied corpus does not state the original exploitation date or disclose exploit details.