CVE-2012-1539
Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute...
Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary code via a crafted web site, aka "CTreePos Use After Free Vulnerability."
Exploit likelihood
What each source reports
CVE List
Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary code via a crafted web site, aka "CTreePos Use After Free Vulnerability."
- Record
CVE-2012-1539- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
EUVDEUVD-2012-1557
Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary code via a crafted web site, aka "CTreePos Use After Free Vulnerability."
- Record
EUVD-2012-1557- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8h3g-5w8f-55gv
Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute...
Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary code via a crafted web site, aka "CTreePos Use After Free Vulnerability."
- Record
GHSA-8h3g-5w8f-55gv- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
NVD
Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary code via a crafted web site, aka "CTreePos Use After Free Vulnerability."
- Record
CVE-2012-1539- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 9.3 High
AV:N/AC:M/Au:N/C:C/I:C/A:C - Weakness
- CWE-399, CWE-416
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2012-1539 is a high vulnerability (CVSS 9.3) in Microsoft Internet Explorer, published November 14, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 25.4%, the 97th percentile. No source names a fixed version.
References
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15886
securitytracker.com/id?1027749
docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-071
securityfocus.com/bid/56421
secunia.com/advisories/51202
us-cert.gov/cas/techalerts/TA12-318A.html
nvd.nist.gov/vuln/detail/CVE-2012-1539
github.com/advisories/GHSA-8h3g-5w8f-55gv