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CVE-2012-2373

18
FAUCET Score

CVE-2012-2373 describes a denial-of-service vulnerability in the Linux kernel versions prior to 3.4.5 on x86 systems with Physical Address Extension (PAE) enabled. This flaw arises from improper Page Middle Directory (PMD) usage, allowing a local attacker to trigger a system panic through a crafted application that exploits a race condition. The vulnerability has a CVSS score of 4.0, indicating a low severity with local access and high attack complexity required to achieve a complete denial of service. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.4.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:x86:*
3.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.4:*:*:*:*:*:x86:*
3.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.4:rc1:*:*:*:*:x86:*
3.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.4:rc2:*:*:*:*:x86:*
3.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.4:rc3:*:*:*:*:x86:*

CVSS Data

CVSS version used by this source: 2.0

4.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
1.9
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
17.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 8th 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-0:2.6.32-220.23.1.el6
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: realtime-kernel

Vendor Advisories (1)

redhatCVE-2012-2373Moderate

kernel: mm: read_pmd_atomic: 32bit PAE pmd walk vs pmd_populate SMP race condition

May 17, 2012

References

git.kernel.org
marc.info
rhn.redhat.com / errata/RHSA-2012-0743.html
bugzilla.redhat.com / show_bug.cgi
github.com / torvalds/linux/commit/26c191788f18129af0eb32a358cdaea0c7479626
Patch
ubuntu.com / usn/usn-1529-1
kernel.org / pub/linux/kernel/v3.x/ChangeLog-3.4.5
openwall.com / lists/oss-security/2012/05/18/11