Security readout for executives and security teams
CVE-2013-3893 is a Microsoft Internet Explorer memory-safety flaw that can let an attacker run code after a user visits malicious content. It affected Internet Explorer 6 through 11. Because CISA lists it in KEV and Microsoft described limited targeted attacks, any remaining legacy IE exposure should be treated as urgent. Exposure is most likely in legacy Windows environments where Internet Explorer 6 through 11 remains installed, callable, or used by embedded business workflows. Modern environments that removed or disabled IE are less likely exposed, but legacy compatibility modes and old systems should be verified. Prioritize remediation for any asset that still permits legacy Internet Explorer browsing, especially internet-facing user workstations or high-value internal users. This is an old vulnerability, but KEV status means it remains relevant for neglected legacy systems. Mitigation focus: Apply Microsoft bulletin MS13-080 where applicable.; Use Microsoft advisory 2887505 and Fix it guidance for legacy cases.; Retire or isolate systems that still require vulnerable Internet Explorer versions..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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Open ATT&CK lookupExecution behavior lookup
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Open ATT&CK lookupCVE-2013-3893 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- oval:org.mitre.oval:def:18665CVE reference · vdb-entry, signature
- MS13-080CVE reference · vendor-advisory, x_refsource_MS
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-3893CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Use After Free
Use After Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.