CVE-2010-0306: kvm_qumranet kvm
Vulnerability summary
CVE-2010-0306 is a medium (CVSS 4.1) vulnerability in kvm_qumranet kvm. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 31.8% of scored vulnerabilities.
Not severe (CVSS 4.1, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4Timeline
- 12-02-2010PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
The x86 emulator in KVM 83, when a guest is configured for Symmetric Multiprocessing (SMP), does not use the Current Privilege Level (CPL) and I/O Privilege Level (IOPL) to restrict instruction execution, which allows guest OS users to cause a denial of service (guest OS crash) or gain privileges on the guest OS by leveraging access to a (1) IO port or (2) MMIO region, and replacing an instruction in between emulator entry and instruction fetch, a related issue to CVE-2010-0298.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
0.38%
Chance of exploitation in the next 30 days
Percentile
32%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.38% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, authentication (CVSS vector). Other conditions: not stated in public data.
Kvm_qumranet1 product
- kvm83
1 vendor · 1 product
References
8 links- bugzilla.redhat.com/show_bug.cgi?id=560654X Refsource CONFIRM
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10953VDB EntrySignatureX Refsource OVAL
