Use-after-free vulnerability in Microsoft Internet Explorer 6 through 8 allows remote…
Priority MEDIUM 58CWE-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 6 through 8 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to a deleted object, aka "cloneNode Use After Free Vulnerability."
Why it matters now
EPSS 0.19496 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 · 15
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:internet_explorer:6:*:*:*:*:*:*:* | 6 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:6:beta1:*:*:*:*:*:* | 6 beta1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:6:sp1:*:*:*:*:*:* | 6 sp1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:6:sp2:*:*:*:*:*:* | 6 sp2 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:6:sp3:*:*:*:*:*:* | 6 sp3 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:7:*:*:*:*:*:*:* | 7 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:7:beta1:*:*:*:*:*:* | 7 beta1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:7:beta2:*:*:*:*:*:* | 7 beta2 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:7:beta3:*:*:*:*:*:* | 7 beta3 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:7:rc1:*:*:*:*:*:* | 7 rc1 | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:internet_explorer:6:*:*:*:*:*:*:* Versions 6 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:6:beta1:*:*:*:*:*:* Versions 6 beta1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:6:sp1:*:*:*:*:*:* Versions 6 sp1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:6:sp2:*:*:*:*:*:* Versions 6 sp2 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:6:sp3:*:*:*:*:*:* Versions 6 sp3 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:7:*:*:*:*:*:*:* Versions 7 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:7:beta1:*:*:*:*:*:* Versions 7 beta1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:7:beta2:*:*:*:*:*:* Versions 7 beta2 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:7:beta3:*:*:*:*:*:* Versions 7 beta3 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:7:rc1:*:*:*:*:*:* Versions 7 rc1 Vulnerable ·Microsoft
Show 5 more CPE
| 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: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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2012-2557
- 2026-10-03 Alias added: GHSA-hfrw-j79g-j786
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-2012-2557 · CVE Program
- CVE-2012-2557 · NVD
- FIRST EPSS
- GHSA-hfrw-j79g-j786 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences