How severe is CVE-2007-4311?

CVE-2007-4311 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2007-4311 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-4311?

CVE-2007-4311 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-4311?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2007-4311 published?

CVE-2007-4311 was published on 2007-08-13 and last updated on 2026-06-16.

CVE-2007-4311

CVE-2007-4311 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-310.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-310
Affected product: Linux Linux Kernel
Published: 2007-08-13
Last modified: 2026-06-16

Description

The xfer_secondary_pool function in drivers/char/random.c in the Linux kernel 2.4 before 2.4.35 performs reseed operations on only the first few bytes of a buffer, which might make it easier for attackers to predict the output of the random number generator, related to incorrect use of the sizeof operator.

Frequently asked questions

What is CVE-2007-4311?: The xfer_secondary_pool function in drivers/char/random.c in the Linux kernel 2.4 before 2.4.35 performs reseed operations on only the first few bytes of a buffer, which might make it easier for attackers to predict the output of the random number generator, related to incorrect use of the sizeof operator.
How severe is CVE-2007-4311?: CVE-2007-4311 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2007-4311 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-4311?: CVE-2007-4311 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-4311?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-4311 published?: CVE-2007-4311 was published on 2007-08-13 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

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