CVE-2010-1225Virtual Pc Vulnerability
The memory-management implementation in the Virtual Machine Monitor (aka VMM or hypervisor) in Microsoft Virtual PC 2007 Gold and SP1, Virtual Server 2005 Gold and R2 SP1, and Windows Virtual PC does not properly restrict access from the guest OS to memory locations in the VMM…
Published Apr 1, 2010 · Updated Apr 28, 2026
Key Facts
Patch immediately- CVE-2010-1225 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Virtual Pc (Microsoft), Virtual Server (Microsoft), Windows Virtual Pc (Microsoft).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 28% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v2
9.3
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
28%
Higher than 98.0% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
36/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
1
Reports of active use
Description
The memory-management implementation in the Virtual Machine Monitor (aka VMM or hypervisor) in Microsoft Virtual PC 2007 Gold and SP1, Virtual Server 2005 Gold and R2 SP1, and Windows Virtual PC does not properly restrict access from the guest OS to memory locations in the VMM work area, which allows context-dependent attackers to bypass certain anti-exploitation protection mechanisms on the guest OS via crafted input to a vulnerable application.
NOTE: the vendor reportedly found that only systems with an otherwise vulnerable application are affected, because "the memory areas accessible from the guest cannot be leveraged to achieve either remote code execution or elevation of privilege and ... no data from the host is exposed to the guest OS."
Affected Products
5 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Virtual PcMicrosoft | 2007, 2007-sp1 | n/a |
| Virtual ServerMicrosoft | 2005, 2005-r2_sp1 | n/a |
| Windows Virtual PcMicrosoft | See advisory | n/a |
Timeline
Publicly disclosed
Apr 1, 2010
Last updated
Apr 28, 2026
Weakness Type
- CWE-264
FAQ
Common Questions.
The memory-management implementation in the Virtual Machine Monitor (aka VMM or hypervisor) in Microsoft Virtual PC 2007 Gold and SP1, Virtual Server 2005 Gold and R2 SP1, and Windows Virtual PC does not properly restrict access from the guest OS to memory locations in the VMM work area, which allows context-dependent…
Affected: Virtual Pc (Microsoft) versions 2007, 2007-sp1; Virtual Server (Microsoft) versions 2005, 2005-r2_sp1; Windows Virtual Pc (Microsoft). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2010-1225 On Your Attack Surface?
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