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CVE-2012-0045

28
FAUCET Score

CVE-2012-0045 describes a denial-of-service vulnerability in the KVM implementation of the Linux kernel, specifically affecting versions before 3.2.14. A guest OS user can trigger a guest OS crash by exploiting improper handling of the 0f05 (syscall) opcode within the em_syscall function. This vulnerability has a CVSS score of 4.7, indicating a medium severity, with a local attack vector and high impact on availability. While not actively exploited in the wild and not on the KEV catalog, an ExploitDB entry (EDB-36545) exists, demonstrating its exploitability. There is no significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.2.13CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc1:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc2:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc3:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.7MEDIUM

AV:L/AC:M/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.01%
Probability of exploitation in next 30 days
EPSS Percentile
59.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-36545 · Dec 29, 2011
This CVE's current EPSS score of 0.0101 is in the 90th percentile among its peer group of 1,595 CVEs.

Social Chatter

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

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-220.7.1.el6
View patch
redhatpatch availablevia redhat_api
Product: RHEV 3.X Hypervisor and Agents for RHEL-6Fixed in: rhev-hypervisor6-0:6.2-20120320.0.el6_2
View patch

Vendor Advisories (1)

redhatCVE-2012-0045Moderate

kernel: kvm: syscall instruction induced guest panic

Dec 29, 2011

References

git.kernel.org
lists.opensuse.org / opensuse-security-announce/2012-05/msg00013.html
bugzilla.redhat.com / show_bug.cgi
Exploit
github.com / torvalds/linux/commit/c2226fc9e87ba3da060e47333657cd6616652b84
ExploitPatch
kernel.org / pub/linux/kernel/v3.x/ChangeLog-3.2.14
openwall.com / lists/oss-security/2012/01/12/2
Exploit