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CVE-2007-2453

10
FAUCET Score

CVE-2007-2453 describes a vulnerability in the Linux kernel versions 2.6.x before 2.6.20.13 and 2.6.21.x before 2.6.21.4, where the random number generator may produce predictable values after reboots on systems lacking an entropy source due to improper seeding or incorrect entropy extraction. This is a low-severity issue with a CVSS score of 1.2, requiring local access and high attack complexity to potentially disclose sensitive information. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
2.6.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.0:*:*:*:*:*:*:*
2.6.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.0:test1:*:*:*:*:*:*
2.6.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.0:test10:*:*:*:*:*:*
2.6.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.0:test11:*:*:*:*:*:*
2.6.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.0:test2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

1.2LOW

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
1.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 69th percentile among its peer group of 747 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, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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 (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-8.1.6.el5
View patch

Vendor Advisories (1)

redhatCVE-2007-2453Important

/dev/random broken

May 30, 2007

References

marc.info
Patch
marc.info
Patch
osvdb.org / 37114
secunia.com / advisories/25596
secunia.com / advisories/25700
secunia.com / advisories/25961
secunia.com / advisories/26133
secunia.com / advisories/26139
secunia.com / advisories/26450
secunia.com / advisories/26620
secunia.com / advisories/26664
exchange.xforce.ibmcloud.com / vulnerabilities/34781
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9960
rhn.redhat.com / errata/RHSA-2007-0376.html
debian.org / security/2007/dsa-1356
kernel.org / pub/linux/kernel/v2.6/ChangeLog-2.6.21.4
mandriva.com / security/advisories
mandriva.com / security/advisories
mandriva.com / security/advisories
novell.com / linux/security/advisories/2007_43_kernel.html
novell.com / linux/security/advisories/2007_51_kernel.html
securityfocus.com / bid/24390
securitytracker.com / id
ubuntu.com / usn/usn-470-1
ubuntu.com / usn/usn-486-1
ubuntu.com / usn/usn-489-1
vupen.com / english/advisories/2007/2105