CVE-2003-0111

CVE-2003-0111 is a high-severity vulnerability in Microsoft Virtual Machine with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 41% places it in the 98th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

The ByteCode Verifier component of Microsoft Virtual Machine (VM) build 5.0.3809 and earlier, as used in Windows and Internet Explorer, allows remote attackers to bypass security checks and execute arbitrary code via a malicious Java applet, aka "Flaw in Microsoft VM Could Enable System Compromise."

Frequently asked questions

What is CVE-2003-0111?
The ByteCode Verifier component of Microsoft Virtual Machine (VM) build 5.0.3809 and earlier, as used in Windows and Internet Explorer, allows remote attackers to bypass security checks and execute arbitrary code via a malicious Java applet, aka "Flaw in Microsoft VM Could Enable System Compromise."
How severe is CVE-2003-0111?
CVE-2003-0111 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2003-0111 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 41% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-0111?
CVE-2003-0111 primarily affects Microsoft Virtual Machine. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2003-0111?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2003-0111 published?
CVE-2003-0111 was published on 2003-05-05 and last updated on 2026-06-16.

References

Affected products (11)

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