Integer underflow in Windows Shell in Microsoft Windows XP SP2 and SP3, Windows Server…
Priority MEDIUM 59CWE-189Published · 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-189 and the CVSS impact.
Summary
Integer underflow in Windows Shell in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, Windows 7 Gold and SP1, Windows 8, and Windows Server 2012 allows local users to gain privileges via a crafted briefcase, aka "Windows Briefcase Integer Underflow Vulnerability."
Why it matters now
EPSS 0.208 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 · 14
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_7:*:*:x64:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_7:*:*:x86:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_7:*:sp1:x64:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_7:*:sp1:x86:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_8:-:-:x64:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_8:-:-:x86:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2008:*:r2:x64:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x64:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x86:*:*:*:*:* | all versions | Vulnerable | Microsoft |
- cpe:2.3:o:microsoft:windows_7:*:*:x64:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_7:*:*:x86:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_7:*:sp1:x64:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_7:*:sp1:x86:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_8:-:-:x64:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_8:-:-:x86:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2008:*:r2:x64:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x64:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x86:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
Show 4 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:-:sp2:x64:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
- cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:-:sp2:x64:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2012-1527
- 2026-10-03 Alias added: GHSA-638j-r9q3-7vww
References
More Microsoft Windows 7 vulnerabilities
- TI-2019-00485 Use after free in Microsoft Windows KEVCVSS 3.1CRITICAL 9.8
- TI-2017-06077 Microsoft Windows XP SP3, Windows XP x64 XP2, Windows Server 2003 SP2, Windows Vista… KEVCVSS 3.1CRITICAL 9.8
- TI-2015-01465 HTTP.sys in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8, Windows 8.1… KEVCVSS 3.1CRITICAL 9.8
- TI-2022-19649 Windows Scripting Languages Remote Code Execution Vulnerability KEVCVSS 3.1HIGH 8.8
- TI-2021-17496 Microsoft MSHTML Remote Code Execution Vulnerability KEVCVSS 3.1HIGH 8.8
- TI-2021-13480 Scripting Engine Memory Corruption Vulnerability KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2012-1527 · CVE Program
- CVE-2012-1527 · NVD
- FIRST EPSS
- GHSA-638j-r9q3-7vww · 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