Security readout for executives and security teams
Plain-English summary
This is a legacy Internet Explorer remote code execution issue. If Internet Explorer 9 or 10 runs with script debugging enabled, a malicious website could trigger unsafe memory handling and run code on the user’s system.
Executive priority
Treat this as high priority only where legacy Internet Explorer 9 or 10 is still in use. Modernized environments likely have limited exposure, but any remaining affected browser footprint should be remediated or isolated.
Technical view
CVE-2013-3126 concerns improper object handling in memory while Internet Explorer 9 and 10 process script with script debugging enabled. The published description says remote attackers can execute arbitrary code through a crafted website.
Likely exposure
Exposure is most likely in legacy environments that still use Internet Explorer 9 or 10, especially for old internal web apps, kiosks, or unmanaged endpoints where script debugging remains enabled.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. The attack path described is remote and web-based, requiring a user or system to visit a crafted site under the affected configuration.
Researcher notes
The public bundle lacks CVSS, CWE, detailed affected CPEs, and exploit telemetry. Analysis is limited to the CVE description, Microsoft advisory reference, OVAL signature reference, and the absence of KEV evidence.
Mitigation direction
- Review and apply Microsoft MS13-047 guidance for affected Internet Explorer installations.
- Disable script debugging where it is not operationally required.
- Reduce or retire remaining Internet Explorer 9 and 10 dependencies.
- Use browser isolation or strict allowlisting for legacy browsing workflows.
Validation and detection
- Inventory endpoints for Internet Explorer 9 and 10 usage.
- Check whether script debugging is enabled on legacy browser profiles.
- Confirm MS13-047 remediation status through patch management records.
- Prioritize systems used for external browsing or unmanaged web access.
Public sources used
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
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Execution 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-2013-3126 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- MS13-047CVE reference · vendor-advisory, x_refsource_MS
- oval:org.mitre.oval:def:16687CVE reference · vdb-entry, signature
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.