CVE-2007-2453

CVE-2007-2453 is a low-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 1.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The random number feature in Linux kernel 2.6 before 2.6.20.13, and 2.6.21.x before 2.6.21.4, (1) does not properly seed pools when there is no entropy, or (2) uses an incorrect cast when extracting entropy, which might cause the random number generator to provide the same values after reboots on systems without an entropy source.

Frequently asked questions

What is CVE-2007-2453?
The random number feature in Linux kernel 2.6 before 2.6.20.13, and 2.6.21.x before 2.6.21.4, (1) does not properly seed pools when there is no entropy, or (2) uses an incorrect cast when extracting entropy, which might cause the random number generator to provide the same values after reboots on systems without an entropy source.
How severe is CVE-2007-2453?
CVE-2007-2453 has a CVSS 2.0 base score of 1.2, rated low severity.
Is CVE-2007-2453 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-2453?
CVE-2007-2453 primarily affects Linux Linux Kernel. In total, 252 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-2453?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-2453 published?
CVE-2007-2453 was published on 2007-06-11 and last updated on 2026-06-16.

References

Affected products (252)

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