The ByteCode Verifier component of Microsoft Virtual Machine (VM) build 5.0.3809 and earlier, as used in Windows and Internet Explorer, allo
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."
- Published
- May 5, 2003
- Updated
- Jun 16, 2026
- EPSS
- 36.7% · 98th percentile
- CWE
- —
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Report tools
Action score
41
Plan
Add it to your regular patch cycle.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 11 / 30 · 36.7%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| microsoft | virtual machine | cpe:2.3:a:microsoft:virtual_machine |
| microsoft | windows 2000 | cpe:2.3:o:microsoft:windows_2000 |
| microsoft | windows 2000 terminal services | cpe:2.3:o:microsoft:windows_2000_terminal_services |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- microsoft virtual machine3802
- microsoft virtual machine3805
- microsoft virtual machine3809
- microsoft windows 2000all versions
- microsoft windows 2000 terminal servicesall versions
Same product
microsoft: all recordsOther highest-scoring records for the same primary product.
- CVE-2002-0866Java Database Connectivity (JDBC) classes in Microsoft Virtual Machine (VM) up to and including 5.0.3805 allow remote attackers to load and 42Plan
- CVE-2002-0865A certain class that supports XML (Extensible Markup Language) in Microsoft Virtual Machine (VM) 5.0.3805 and earlier, probably com.ms.osp.o36Monitor
- CVE-2000-0327Microsoft Virtual Machine (VM) allows remote attackers to escape the Java sandbox and execute commands via an applet containing an illegal c34Monitor
- CVE-2002-0979The Java logging feature for the Java Virtual Machine in Internet Explorer writes output from functions such as System.out.println to a know32Monitor
- CVE-2002-0867Microsoft Virtual Machine (VM) up to and including build 5.0.3805 allows remote attackers to cause a denial of service (crash) in Internet E28Monitor
- CVE-2002-0058Vulnerability in Java Runtime Environment (JRE) allows remote malicious web sites to hijack or sniff a web client's sessions, when an HTTP p23Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Exploit-DB entry ×1
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Exploit-DB entry | remote | 2002-11-21 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- First PoC-165 d
- Published
- TodaySep 30, 2026+8549 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- P · data can be read
- Integrity
- P · data or configuration can be modified
- Availability
- P · the service can be disrupted
- Attack complexity
- Low
- Confidentiality impact
- P
- Integrity impact
- P
- Availability impact
- P
Weakness class (CWE)
—
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- www.iss.net/security_center/static/11751.php
- www.kb.cert.org/vuls/id/447569
- docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-011
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A136
Vendor advisories and official records. Exploit/PoC links are deliberately left out.