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CVE-2012-1854: Microsoft Visual Basic for Applications Insecure Library Loading Vulnerability

• Severity: medium (CVSS 6.9 v2.0)
• Exploited in the wild: yes — in CISA KEV since 2026-04-13
• EPSS: 20.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2012-07-10 · updated 2026-06-16
• Weakness: CWE-426

Description

Untrusted search path vulnerability in VBE6.dll in Microsoft Office 2003 SP3, 2007 SP2 and SP3, and 2010 Gold and SP1; Microsoft Visual Basic for Applications (VBA); and Summit Microsoft Visual Basic for Applications SDK allows local users to gain privileges via a Trojan horse DLL in the current working directory, as demonstrated by a directory that contains a .docx file, aka "Visual Basic for Applications Insecure Library Loading Vulnerability," as exploited in the wild in July 2012.

Affected products

• Microsoft Office: 2003-sp3, 2007-sp2, 2007-sp3, 2010, 2010-sp1
• Microsoft Visual Basic For Applications: all versions
• Microsoft Visual Basic For Applications Sdk: all versions

References

• http://www.us-cert.gov/cas/techalerts/TA12-192A.html
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-046
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14950
• http://www.us-cert.gov/cas/techalerts/TA12-192A.html
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-046
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14950
• https://learn.microsoft.com/en-us/security-updates/SecurityBulletins/2012/ms12-046
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-1854

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