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CVE-2012-0158

98
FAUCET Score

CVE-2012-0158 is a critical remote code execution vulnerability residing in the MSCOMCTL.OCX ActiveX controls used by Microsoft Office, SQL Server, and other legacy software. This high-severity flaw allows unauthenticated attackers to execute arbitrary code by socially engineering users into opening malicious websites or crafted documents, such as RTF files, leading to potential full system compromise. Despite its age, the vulnerability remains a significant risk with a high EPSS score; it is listed in CISA's Known Exploited Vulnerabilities catalog and has been extensively leveraged by APT groups using widely available exploit code found in frameworks like Metasploit.

Impacted Technologies

VendorProductVersion(s)CPE
2003CPE matchmatch criteria
cpe:2.3:a:microsoft:office:2003:sp3:*:*:*:*:*:*
2007CPE matchmatch criteria
cpe:2.3:a:microsoft:office:2007:sp2:*:*:*:*:*:*
2007CPE matchmatch criteria
cpe:2.3:a:microsoft:office:2007:sp3:*:*:*:*:*:*
2010CPE matchmatch criteria
cpe:2.3:a:microsoft:office:2010:-:*:*:*:*:x86:*
2010CPE matchmatch criteria
cpe:2.3:a:microsoft:office:2010:sp1:*:*:*:*:x86:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
99.97%
Probability of exploitation in next 30 days
EPSS Percentile
100.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Added to KEV · Nov 3, 2021
Metasploit: MS12-027 MSCOMCTL ActiveX Buffer Overflow · Apr 10, 2012
ExploitDB: EDB-18780 · Apr 25, 2012
This CVE's current EPSS score of 0.9997 is in the 100th percentile among its peer group of 14,824 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
opensources.info / comment-on-the-curious-case-of-a-cve-2012-0158-exploit-by-chris-pierce
Broken Link
docs.microsoft.com / en-us/security-updates/securitybulletins/2012/ms12-027
PatchVendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/74372
Third Party AdvisoryVDB Entry
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15462
Broken Link
securityfocus.com / bid/52911
Broken LinkThird Party AdvisoryVDB Entry
securitytracker.com / id
Broken LinkThird Party AdvisoryVDB Entry
securitytracker.com / id
Broken LinkThird Party AdvisoryVDB Entry
securitytracker.com / id
Broken LinkThird Party AdvisoryVDB Entry
securitytracker.com / id
Broken LinkThird Party AdvisoryVDB Entry
securitytracker.com / id
Broken LinkThird Party AdvisoryVDB Entry
securitytracker.com / id
Broken LinkThird Party AdvisoryVDB Entry
us-cert.gov / cas/techalerts/TA12-101A.html
Third Party AdvisoryUS Government Resource