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CVE-2007-5494

15
FAUCET Score

CVE-2007-5494 describes a memory leak vulnerability in the Red Hat Content Accelerator kernel patch affecting Red Hat Enterprise Linux (RHEL) versions 4 and 5. A local attacker can exploit this by issuing numerous open requests with O_ATOMICLOOKUP, leading to excessive memory consumption and a denial of service. The vulnerability has a CVSS score of 4.9 (AV:L/AC:L/Au:N/C:N/I:N/A:C), indicating low attack complexity and local access, with a high impact on availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
4.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:4.0:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.9MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 57th percentile among its peer group of 3,052 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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 (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: kernel-0:2.6.9-67.0.1.EL
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-53.1.4.el5
View patch

Vendor Advisories (1)

redhatCVE-2007-5494Important

open(O_ATOMICLOOKUP) leaks dentry

Nov 29, 2007

References

osvdb.org / 44153
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/27824
Vendor Advisory
secunia.com / advisories/28162
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/38823
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10884
redhat.com / support/errata/RHSA-2007-0993.html
redhat.com / support/errata/RHSA-2007-1104.html
securityfocus.com / bid/26657
securitytracker.com / id