Security readout for executives and security teams
Plain-English summary
This is an old Microsoft Windows scripting component flaw that can let a malicious website run code or crash the browser when opened in Internet Explorer. Business risk is highest where legacy Windows and Internet Explorer remain in use.
Executive priority
Treat as high priority only where legacy Windows and Internet Explorer remain in scope. Fully patched or retired systems substantially reduce business urgency.
Technical view
CVE-2013-5056 is a use-after-free in the Microsoft Scripting Runtime Object Library. The cited CVE description says remote attackers can trigger memory corruption through a crafted website visited with Internet Explorer, causing arbitrary code execution or denial of service across multiple Windows versions.
Likely exposure
Exposure is most likely on legacy Windows desktops or servers listed in the CVE that still allow Internet Explorer browsing or embedded IE-rendered web content.
Exploitation context
The provided bundle does not show CISA KEV listing or active exploitation evidence. Exploitation requires a user or process to visit crafted web content through Internet Explorer.
Researcher notes
The source bundle lacks CVSS, CWE, and detailed patch matrix data. Do not assume products beyond the Windows versions named in the CVE description and Microsoft bulletin.
Mitigation direction
- Review and apply Microsoft MS13-099 guidance where applicable.
- Prioritize removal or isolation of affected legacy Windows systems.
- Limit Internet Explorer use on exposed hosts until remediation is verified.
- Use vendor guidance for systems no longer receiving normal updates.
Validation and detection
- Inventory Windows versions named in the CVE description.
- Confirm whether MS13-099 or successor cumulative updates are installed.
- Identify systems where Internet Explorer remains usable or embedded.
- Review endpoint logs for suspicious Internet Explorer crashes or memory-corruption events.
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-2013-5056 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
- MS13-099CVE reference · vendor-advisory, x_refsource_MS
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.