CVE-2012-4969 (GCVE-0-2012-4969)
Vulnerability from cvelistv5 – Published: 2012-09-18 10:00 – Updated: 2025-10-22 00:05Summary
Use-after-free vulnerability in the CMshtmlEd::Exec function in mshtml.dll in Microsoft Internet Explorer 6 through 9 allows remote attackers to execute arbitrary code via a crafted web site, as exploited in the wild in September 2012.
Severity
8.1 (High)
SSVC
Exploitation: active
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-04 21:20 UTC
CWE
- n/a
- CWE-416 - Use After Free
Assigner
References
12 references
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|---|---|
| http://www.us-cert.gov/cas/techalerts/TA12-265A.html | third-party-advisoryx_refsource_CERT |
| http://www.kb.cert.org/vuls/id/480095 | third-party-advisoryx_refsource_CERT-VN |
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| http://www.us-cert.gov/cas/techalerts/TA12-262A.html | third-party-advisoryx_refsource_CERT |
| http://www.securityweek.com/new-internet-explorer… | x_refsource_MISC |
| http://technet.microsoft.com/security/advisory/2757760 | x_refsource_CONFIRM |
| http://www.us-cert.gov/cas/techalerts/TA12-255A.html | third-party-advisoryx_refsource_CERT |
| http://blog.vulnhunt.com/index.php/2012/09/17/ie-… | x_refsource_MISC |
| http://dev.metasploit.com/redmine/projects/framew… | x_refsource_MISC |
| http://www.securitytracker.com/id?1027538 | vdb-entryx_refsource_SECTRACK |
| http://eromang.zataz.com/2012/09/16/zero-day-seas… | x_refsource_MISC |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Date Public
2012-09-16 00:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: beaa1331-07c4-4e25-9022-54e2f2934659
Exploited: Yes
Timestamps
First Seen: 2022-06-08
Asserted: 2022-06-08
Scope
Notes: Microsoft Internet Explorer Use-After-Free Vulnerability | Affected: Microsoft / Internet Explorer | Description: Microsoft Internet Explorer contains a use-after-free vulnerability that allows remote attackers to execute code via a crafted web site. | Required action: Apply updates per vendor instructions. | Due date: 2022-06-22 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2012-4969
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | Internet Explorer |
| Due Date | 2022-06-22 |
| Date Added | 2022-06-08 |
| Vendorproject | Microsoft |
| Vulnerabilityname | Microsoft Internet Explorer Use-After-Free Vulnerability |
| Knownransomwarecampaignuse | Unknown |
References
Created: 2026-10-02 08:09 CEST
| Updated: 2026-10-02 08:09 CEST
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 548d6f01-d00c-47f9-a7e8-697fa68301ae
Exploited: Yes
Timestamps
First Seen: 2022-06-08
Asserted: 2022-06-08
Scope
Notes: Use-after-free vulnerability in the CMshtmlEd::Exec function in mshtml.dll in Microsoft Internet Explorer 6 through 9 allows remote attackers to... | Affected: Microsoft / Internet Explorer | CVSS: 8.1 (HIGH) | EPSS: 0.8025 | Used in malware: unknown | Not yet in CISA KEV: False
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: previdian
Details
| Feed | Previdian (previdian.com) |
|---|---|
| Title | Use-after-free vulnerability in the CMshtmlEd::Exec function in mshtml.dll in Microsoft Internet Explorer 6 through 9 allows remote attackers to... |
| Cve Id | CVE-2012-4969 |
| Vendor | Microsoft |
| Ghsa Id | None |
| Product | Internet Explorer |
| Added Date | 2022-06-08T00:00:00.000Z |
| Cvss Score | 8.1 |
| Epss Score | 0.8025 |
| Previous Ids | |
| Cvss Severity | HIGH |
| Virtual Patch | False |
| Cvss Estimated | False |
| Epss Percentile | 0.9961 |
| Used In Malware | unknown |
| Vulnerability Id | CVE-2012-4969 |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | False |
References
Created: 2026-10-02 09:11 CEST
| Updated: 2026-10-02 09:11 CEST
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"url": "http://eromang.zataz.com/2012/09/16/zero-day-season-is-really-not-over-yet/"
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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