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CVE-2010-0306

13
FAUCET Score

CVE-2010-0306 describes a privilege escalation and denial-of-service vulnerability in the x86 emulator of KVM 83, specifically when guests are configured for Symmetric Multiprocessing (SMP). This flaw allows authenticated guest OS users to crash the guest OS or gain privileges by manipulating IO ports or MMIO regions. With a CVSS score of 4.1, it is considered a low-severity vulnerability with local access and medium attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
83CPE matchmatch criteria
cpe:2.3:a:kvm_qumranet:kvm:83:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.1MEDIUM

AV:L/AC:M/Au:S/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
SINGLE
Exploitability Score
2.7
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.38%
Probability of exploitation in next 30 days
EPSS Percentile
30.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0038 is in the 80th percentile among its peer group of 1,297 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kvm-0:83-105.el5_4.22
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Virtualization for RHEL-5Fixed in: rhev-hypervisor-0:5.4-2.1.8.el5_4rhev2_1
View patch

Vendor Advisories (1)

redhatCVE-2010-0306Important

kvm: emulator privilege escalation IOPL/CPL level check

Feb 9, 2010

References

bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/38492
Vendor Advisory
secunia.com / advisories/38499
Vendor Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10953
rhn.redhat.com / errata/RHSA-2010-0088.html
rhn.redhat.com / errata/RHSA-2010-0095.html
debian.org / security/2010/dsa-1996
securityfocus.com / bid/38158