CVE-2012-1527

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."

Published: 2012-11-14 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-1527 is rated High Risk (71.8/100): CVSS Critical severity, with high exploitation likelihood (EPSS 47.37%, 98th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2012-1527

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-02-01 46.91% 47.37% +0.46%
2 2026-01-27 50.50% 46.91% -3.59%
3 2025-12-28 — 50.50% —

Full EPSS history (23 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-1527

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2012-1527

NVD evaluator notes for CVE-2012-1527

Comment: Per: http://technet.microsoft.com/en-us/security/bulletin/ms12-072 "A remote code execution vulnerability exists in the Briefcase feature in Windows. An attacker could exploit the vulnerability by convincing a user to open a specially crafted briefcase.....The vulnerability cannot be exploited automatically through email. For an attack to be successful a user must open an attachment that is sent in an email message."

Affected software / configurations for CVE-2012-1527

Vendor Product Version Raw CPE
microsoft windows_7 — cpe:2.3:o:microsoft:windows_7:*:*:x64:*:*:*:*:*
microsoft windows_7 — cpe:2.3:o:microsoft:windows_7:*:*:x86:*:*:*:*:*
microsoft windows_7 — cpe:2.3:o:microsoft:windows_7:*:sp1:x64:*:*:*:*:*
microsoft windows_7 — cpe:2.3:o:microsoft:windows_7:*:sp1:x86:*:*:*:*:*
microsoft windows_8 — cpe:2.3:o:microsoft:windows_8:-:-:x64:*:*:*:*:*
microsoft windows_8 — cpe:2.3:o:microsoft:windows_8:-:-:x86:*:*:*:*:*
microsoft windows_server_2003 — cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*
microsoft windows_server_2008 — cpe:2.3:o:microsoft:windows_server_2008:*:r2:x64:*:*:*:*:*
microsoft windows_server_2008 — cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x64:*:*:*:*:*
microsoft windows_server_2008 — cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x86:*:*:*:*:*
microsoft windows_server_2012 — cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
microsoft windows_vista — cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:*
microsoft windows_xp — cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:*
microsoft windows_xp — cpe:2.3:o:microsoft:windows_xp:-:sp2:x64:*:*:*:*:*

References for CVE-2012-1527

cvelogic Threat Intelligence