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

criticalknown exploitedCVE-2012-1854
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Microsoft Visual Basic for Applications (VBA) contains an insecure library loading vulnerability that could allow for remote code execution.

CSIRTS triage

vendor: Microsoftproduct: Visual Basic for ApplicationsRemote code execution
What
Microsoft Visual Basic for Applications (VBA) contains an insecure library loading vulnerability that could allow for remote code execution.
Who is affected
Users of Microsoft Visual Basic for Applications.
Urgency
Urgent remediation is necessary as the vulnerability is actively exploited and critical.
Action
Update Microsoft Visual Basic for Applications to the latest version.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2026-04-13
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2012-1854

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2012-1854coverage & exploitation statusNVD · CVE.org

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