Use-after-free vulnerability in Microsoft Internet Explorer 6 through 8 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to an object that (1) was not properly allocated or (2) is deleted, as demonstrated by a CDwnBindInfo object, and exploited in the wild in December 2012.
Why It Matters
Analysis dossierWhy It Matters
Use-after-free vulnerability in Microsoft Internet Explorer 6 through 8 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to an object that (1) was not properly allocated or (2) is deleted, as demonstrated by a CDwnBindInfo object, and exploited in the wild in December 2012.
Immediate Attention
Yes
Unknown
Risk basis: CISA KEV exploitation signal; Microsoft or Microsoft-managed product relevance; HIGH severity; Known exploitation signal from CISA KEV or ransomware metadata; Source-confirmed exploitation or CISA KEV/ransomware metadata
Affected Products & Remediation
1 source-backed product- microsoft internet explorer · 6; 7; 8 · NVD CPE · Source
Vendor or catalog guidance (source)
- CISA KEV: The impacted product is end-of-life and should be disconnected if still in use.
Known exploitation (source facts)
Only what a source states. Unknown means no source has said either way; it is not "not exploited".
- CISA KEV
- Listed
- Exploited (source statement)
- Yes
- Publicly disclosed (source)
- Unknown
CISA required action: The impacted product is end-of-life and should be disconnected if still in use.
Suggested hunting (rule-based inference)
SecOps Signal recommendation (rule-based inference). These steps are hunting hypotheses from the vulnerability class; they do not state or imply that exploitation occurred here or anywhere.
Matched kev-network-exposure (CVSS AV:N, CISA KEV Listed)
Exposure
- Identify assets with the exact CVE and confirm the affected product/version against the advisory.Telemetry: DeviceTvmSoftwareVulnerabilities · KEV listing raises urgency, but inventory is needed to establish local exposure. · Rule kev-network-exposure
Exploitation evidence
- Review relevant edge or application access logs for unusual requests around the advisory window.Telemetry: CommonSecurityLog · Log review is a hunting hypothesis; KEV listing alone does not show local exploitation. · Rule kev-network-exposure
Response
- Recheck the affected assets after the source-stated mitigation or update is applied.Telemetry: DeviceTvmSoftwareVulnerabilities · A follow-up inventory check verifies local remediation. · Rule kev-network-exposure
CISA KEV Record
The impacted product is end-of-life and should be disconnected if still in use.
Change History & Source Data
— No recorded material change
- CNA / source
- secure@microsoft.com
- Record status · verification
- UPDATED · CISA KEV confirmed
- CPE
- cpe:2.3:a:microsoft:internet_explorer:6:*:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_server_2003:-:sp2:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:*:*:x64:*, cpe:2.3:o:microsoft:windows_xp:-:sp3:*:*:*:*:*:*, cpe:2.3:a:microsoft:internet_explorer:7:*:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:itanium:*, cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:*, cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x86:*, cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:*:*, cpe:2.3:a:microsoft:internet_explorer:8:*:*:*:*:*:*:*
Evidence & Provenance
Linked by the query's stored exact CVE association. Review required tables and validation status before use.
DeviceTvmSoftwareVulnerabilities| where CveId == "CVE-2012-4792"| project DeviceId, DeviceName, OSPlatform, OSVersion, SoftwareVendor, SoftwareName, SoftwareVersion, CveId, VulnerabilitySeverityLevel, RecommendedSecurityUpdate, RecommendedSecurityUpdateId| sort by VulnerabilitySeverityLevel descLooking up related community queries…