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TI-2012-01346 Aliases CVE-2012-1539GHSA-8h3g-5w8f-55gv

Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to…

Priority MEDIUM 59CWE-416Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

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."

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.2537 97th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 9

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:*9VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_7:*:*:x64:*:*:*:*:*all versionsRunning onMicrosoft
cpe:2.3:o:microsoft:windows_7:*:*:x86:*:*:*:*:*all versionsRunning onMicrosoft
cpe:2.3:o:microsoft:windows_7:*:sp1:x64:*:*:*:*:*all versionsRunning onMicrosoft
cpe:2.3:o:microsoft:windows_7:*:sp1:x86:*:*:*:*:*all versionsRunning onMicrosoft
cpe:2.3:o:microsoft:windows_server_2008:*:r2:x64:*:*:*:*:*all versionsRunning onMicrosoft
cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x64:*:*:*:*:*all versionsRunning onMicrosoft
cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x86:*:*:*:*:*all versionsRunning onMicrosoft
cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:*all versionsRunning onMicrosoft
  • cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:* Versions 9 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_7:*:*:x64:*:*:*:*:* Versions all versions Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_7:*:*:x86:*:*:*:*:* Versions all versions Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_7:*:sp1:x64:*:*:*:*:* Versions all versions Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_7:*:sp1:x86:*:*:*:*:* Versions all versions Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2008:*:r2:x64:*:*:*:*:* Versions all versions Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x64:*:*:*:*:* Versions all versions Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x86:*:*:*:*:* Versions all versions Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:* Versions all versions Running on ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2012-1539
  2. 2026-10-03 Alias added: GHSA-8h3g-5w8f-55gv

References

Advisory 2

Other 1

  • TI-2015-00277 Use-after-free vulnerability in Adobe Flash Player before 13.0.0.269 and 14.x through… KEVCVSS 3.1CRITICAL 9.8
  • TI-2015-00275 Unspecified vulnerability in Adobe Flash Player through 13.0.0.262 and 14.x, 15.x, and… KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-01386 Use-after-free vulnerability in Microsoft Internet Explorer 6 through 11 allows remote… KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-01340 Scripting Engine Memory Corruption Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2019-00335 Command injection in Microsoft Office KEVCVSS 3.1HIGH 8.8
  • TI-2017-00204 Out-of-bounds write in Microsoft Internet Explorer KEVCVSS 3.1HIGH 8.8
See all 1634 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences