HIGH
VMware ESXi 3.5, 4.0, and 4.1 and ESX 3.5, 4.0, and 4.1 do not properly implement port-based I/O operations, which allows guest OS users to gain guest OS privileges by overwriting memory locations in a read-only memory block associated with the Virtual DOS Machine
Published Apr 2, 2012
8.3
HIGHCVSS 2.0
EPSS 0.81%
Description
VMware ESXi 3.5, 4.0, and 4.1 and ESX 3.5, 4.0, and 4.1 do not properly implement port-based I/O operations, which allows guest OS users to gain guest OS privileges by overwriting memory locations in a read-only memory block associated with the Virtual DOS Machine.
Affected products
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.
8.3 HIGH NVD
AV:A/AC:L/Au:N/C:C/I:C/A:C
Access Vector Adjacent
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.81% 0.00814
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.00814
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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.81% (0.00814) | 55.46th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.82% (0.00823) | 52.38th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.29% (0.00288) | 50.15th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.24% (0.00243) | 64.85th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.24% (0.00243) | 63.39th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.24% (0.00243) | 60.40th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.18% (0.01183) | 61.76th | v2 (v2022.01.01) |
| Oct 19, 2022 | 1.18% (0.01183) | 60.79th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.18% (0.01183) | 58.77th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.18% (0.01183) | 35.15th | v2 (v2022.01.01) |
Weaknesses (1)
References (8)
- http://www.securityfocus.com/bid/52820 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1026875 vdb-entryx_refsource_SECTRACK
- http://www.us-cert.gov/cas/techalerts/TA12-164A.html third-party-advisoryx_refsource_CERTUS Government Resource
- http://www.vmware.com/security/advisories/VMSA-2012-0006.html x_refsource_CONFIRMVendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-042 vendor-advisoryx_refsource_MS
- https://exchange.xforce.ibmcloud.com/vulnerabilities/74480 vdb-entryx_refsource_XF
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15209 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17110 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/52820 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id?1026875 | vdb-entryx_refsource_SECTRACK | |
| http://www.us-cert.gov/cas/techalerts/TA12-164A.html | third-party-advisoryx_refsource_CERTUS Government Resource | |
| http://www.vmware.com/security/advisories/VMSA-2012-0006.html | x_refsource_CONFIRMVendor Advisory | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-042 | vendor-advisoryx_refsource_MS | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/74480 | vdb-entryx_refsource_XF | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15209 | vdb-entrysignaturex_refsource_OVAL | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17110 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Apr 2, 2012
Updated Aug 6, 2024
Reserved Mar 8, 2012
Link CVE-2012-1515
CISA Vulnrichment
Updated n/a