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 Apr 15, 2003
7.5
HIGHCVSS 2.0
EPSS 36.67%
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."
Affected products
No data.
Configuration 1
- 3802
- 3805
- 3809
Configuration 2
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (21 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 36.67% (0.36667) | 98.46th | v5 (v2026.06.15) |
| Jul 20, 2026 | 36.67% (0.36667) | 98.33th | v5 (v2026.06.15) |
| Jun 20, 2026 | 41.21% (0.41212) | 98.49th | v5 (v2026.06.15) |
| Jun 15, 2026 | 36.67% (0.36667) | 98.30th | v5 (v2026.06.15) |
| Feb 5, 2026 | 39.32% (0.39318) | 97.18th | v4 (v2025.03.14) |
| Dec 28, 2025 | 35.75% (0.35746) | 96.92th | v4 (v2025.03.14) |
| Dec 27, 2025 | 26.14% (0.26141) | 96.14th | v4 (v2025.03.14) |
| Oct 28, 2025 | 35.75% (0.35746) | 96.88th | v4 (v2025.03.14) |
| Oct 27, 2025 | 22.24% (0.22243) | 95.56th | v4 (v2025.03.14) |
| Oct 23, 2025 | 35.75% (0.35746) | 96.88th | v4 (v2025.03.14) |
| Oct 1, 2025 | 49.36% (0.49365) | 97.72th | v4 (v2025.03.14) |
| Sep 30, 2025 | 22.24% (0.22243) | 95.62th | v4 (v2025.03.14) |
| Mar 30, 2025 | 26.14% (0.26141) | 95.84th | v4 (v2025.03.14) |
| Mar 29, 2025 | 37.23% (0.37230) | 95.67th | v4 (v2025.03.14) |
| Mar 19, 2025 | 26.14% (0.26141) | 95.64th | v4 (v2025.03.14) |
| Mar 17, 2025 | 21.01% (0.21008) | 95.17th | v4 (v2025.03.14) |
| Dec 17, 2024 | 16.94% (0.16944) | 96.04th | v3 (v2023.03.01) |
| Feb 11, 2024 | 5.89% (0.05891) | 93.13th | v3 (v2023.03.01) |
| Mar 7, 2023 | 6.79% (0.06792) | 92.74th | v3 (v2023.03.01) |
| Mar 6, 2023 | 45.15% (0.45154) | 98.39th | v2 (v2022.01.01) |
| Feb 4, 2022 | 45.15% (0.45154) | 97.79th | v2 (v2022.01.01) |
No CWE recorded.
References (4)
- http://www.iss.net/security_center/static/11751.php vdb-entryx_refsource_XFPatchVendor Advisory
- http://www.kb.cert.org/vuls/id/447569 third-party-advisoryx_refsource_CERT-VNPatchThird Party AdvisoryUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-011 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A136 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://www.iss.net/security_center/static/11751.php | vdb-entryx_refsource_XFPatchVendor Advisory | |
| http://www.kb.cert.org/vuls/id/447569 | third-party-advisoryx_refsource_CERT-VNPatchThird Party AdvisoryUS Government Resource | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-011 | vendor-advisoryx_refsource_MS | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A136 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.