CVE-2012-5946

IBM SPSS SamplePower 3.0 - Buffer Overflow in c1sizer ActiveX Control via TabCaption

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2012-5946. PoCs published by Metasploit, Alexander Gavrun, juan vazquez, including Metasploit module exploits/windows/browser/ibm_spss_c1sizer.

AI-analyzed exploit summary This Metasploit module exploits a heap-based buffer overflow in the C1Tab ActiveX control (c1sizer.ocx) via the TabCaption property in IBM SPSS SamplePower 3.0. It achieves remote code execution by leveraging heap spraying and ROP chains, targeting IE 6-8 on Windows XP SP3 and Windows 7 SP1.

Description

Buffer overflow in the c1sizer ActiveX control in C1sizer.ocx in IBM SPSS SamplePower 3.0 before FP1 allows remote attackers to execute arbitrary code via a long TabCaption string.

Exploits (2)

exploitdb WORKING POC VERIFIED
by Metasploit · rubyremotewindows
https://www.exploit-db.com/exploits/25814

This Metasploit module exploits a heap-based buffer overflow in the C1Tab ActiveX control (c1sizer.ocx) via the TabCaption property in IBM SPSS SamplePower 3.0. It achieves remote code execution by leveraging heap spraying and ROP chains, targeting IE 6-8 on Windows XP SP3 and Windows 7 SP1.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Complex
Reliability
Reliable
Target: IBM SPSS SamplePower 3.0 (c1sizer.ocx 8.0.20071.39)
No auth needed
Prerequisites: Victim must visit a malicious webpage using a vulnerable version of Internet Explorer (6-8) · IBM SPSS SamplePower 3.0 must be installed
devstral-2 · analyzed Feb 16, 2026 Full analysis →
metasploit WORKING POC NORMAL
by Alexander Gavrun, juan vazquez · rubypocwin
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/ibm_spss_c1sizer.rb

This Metasploit module exploits a heap-based buffer overflow in the C1Tab ActiveX control (c1sizer.ocx) via the TabCaption property in IBM SPSS SamplePower 3.0. It includes heap spraying, ROP chains, and stack pivoting to achieve remote code execution on vulnerable Windows systems.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Complex
Reliability
Reliable
Target: IBM SPSS SamplePower 3.0 (c1sizer.ocx 8.0.20071.39)
No auth needed
Prerequisites: Victim must visit a malicious webpage hosting the exploit · ActiveX control must be installed and enabled in Internet Explorer
devstral-2 · analyzed Feb 19, 2026 Full analysis →

References (2)

Core 2
Core References
Vendor Advisory x_refsource_confirm
http://www-01.ibm.com/support/docview.wss?uid=swg21635476
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/80562

Scores

EPSS 0.3378
EPSS Percentile 98.2%

Details

CWE
CWE-119
Status published
Products (1)
ibm/spss_samplepower 3.0.0.0
Published Apr 30, 2013
Tracked Since Feb 18, 2026