Security readout for executives and security teams
CVE-2013-3918 is a Microsoft Windows Internet Explorer ActiveX vulnerability. A user visiting a crafted web page could allow attacker-controlled code to run, with the same rights as that user. It was exploited in the wild and is listed in CISA KEV, so remaining legacy exposure deserves urgent cleanup. Exposure is most likely on legacy Windows systems using Internet Explorer or retaining vulnerable ActiveX components without MS13-090 applied. Modern environments are mainly at risk through forgotten Windows XP, Server 2003, Vista, Server 2008, Windows 7, Windows 8/8.1, Windows RT, or Server 2012-era assets. Treat this as a legacy-risk cleanup item with high urgency wherever old Windows or Internet Explorer remains. The vulnerability is historical but known exploited, and unsupported systems may have no practical safe operating posture beyond isolation or retirement. Mitigation focus: Apply Microsoft security update MS13-090 where the platform is still supportable.; Retire or isolate unsupported Windows and Internet Explorer-dependent systems.; Follow current Microsoft guidance for any remaining affected legacy deployments..
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
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2013-3918 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
- MS13-090CVE reference · vendor-advisory, x_refsource_MS
- oval:org.mitre.oval:def:19089CVE reference · vdb-entry, signature
- https://isc.sans.edu/forums/diary/16985CVE reference · x_refsource_MISC
- https://www.microsoft.com/en-us/msrc/blog/2013/11/technical-details-of-the-targeted-attack-using-ie-vulnerability-cve-2013-3918/CVE reference · vendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-3918CVE 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.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.