CVE-2012-4969
Use-after-free vulnerability in the CMshtmlEd::Exec function in mshtml.dll in Microsoft Internet Explorer 6 through 9 allows remote…
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
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.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Microsoft Internet Explorer Use-After-Free Vulnerability.
- Added
- 8 Jun 2022
- Fix due (US federal)
- 22 Jun 2022
- Used by ransomware
- Not known
Apply updates per vendor instructions.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: it is being exploited.
Timeline
ID reserved
By mitre
Published
- 10 years later
· 10 years later
Added to CISA KEV
Known exploited in the wild
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 80.3% · top 0.4% of all CVEs (8 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.1.
Weakness
Affected products
n/a
- affected n/a
References (12)
- TA12-265A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- VU#480095 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- oval:org.mitre.oval:def:15729 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- TA12-262A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- http://www.securityweek.com/new-internet-explorer-zero-day-being-exploited-wild (opens in a new tab)x_refsource_MISCx_transferred
- http://technet.microsoft.com/security/advisory/2757760 (opens in a new tab)x_refsource_CONFIRMx_transferred
- TA12-255A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- http://blog.vulnhunt.com/index.php/2012/09/17/ie-execcommand-fuction-use-after-free-vulnerability-0day_en/ (opens in a new tab)x_refsource_MISCx_transferred
- http://dev.metasploit.com/redmine/projects/framework/repository/entry/modules/exploits/windows/browser/ie_execcommand_uaf.rb (opens in a new tab)x_refsource_MISCx_transferred
- 1027538 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- http://eromang.zataz.com/2012/09/16/zero-day-season-is-really-not-over-yet/ (opens in a new tab)x_refsource_MISCx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-4969 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2012-4969)Record last updated .