Use-after-free vulnerability in Microsoft Internet Explorer 8 and 9 allows remote…
Priority MEDIUM 59CWE-399Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.
Summary
Use-after-free vulnerability in Microsoft Internet Explorer 8 and 9 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to an object that (1) was not properly initialized or (2) is deleted, aka "OnMove Use After Free Vulnerability."
Why it matters now
EPSS 0.20204 97th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:internet_explorer:8:*:*:*:*:*:*:* | 8 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:8:beta1:*:*:*:*:*:* | 8 beta1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:8:beta2:*:*:*:*:*:* | 8 beta2 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:8:rc1:*:*:*:*:*:* | 8 rc1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:* | 9 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:9:beta1:*:*:*:*:*:* | 9 beta1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:9:rc1:*:*:*:*:*:* | 9 rc1 | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:internet_explorer:8:*:*:*:*:*:*:* Versions 8 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:8:beta1:*:*:*:*:*:* Versions 8 beta1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:8:beta2:*:*:*:*:*:* Versions 8 beta2 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:8:rc1:*:*:*:*:*:* Versions 8 rc1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:* Versions 9 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:9:beta1:*:*:*:*:*:* Versions 9 beta1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:9:rc1:*:*:*:*:*:* Versions 9 rc1 Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2012-1529
- 2026-10-03 Alias added: GHSA-g4hh-gpv8-3468
References
More Microsoft Internet Explorer vulnerabilities
- 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
Sources
- CVE-2012-1529 · CVE Program
- CVE-2012-1529 · NVD
- FIRST EPSS
- GHSA-g4hh-gpv8-3468 · GitHub Advisory Database · CC BY 4.0
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