How severe is CVE-2007-4994?

CVE-2007-4994 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2007-4994 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-4994?

CVE-2007-4994 affects Redhat Certificate Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-4994?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2007-4994 published?

CVE-2007-4994 was published on 2007-11-06 and last updated on 2026-06-16.

CVE-2007-4994

CVE-2007-4994 is a high-severity vulnerability in Redhat Certificate Server with a CVSS 2.0 base score of 7.5. 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-255.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-255
Affected product: Redhat Certificate Server
Published: 2007-11-06
Last modified: 2026-06-16

Description

Certificate Server 7.2 in Red Hat Certificate System (RHCS) does not properly handle new revocations that occur while a Certificate Revocation List (CRL) is being generated, which might prevent certain revoked certificates from appearing on the CRL quickly and allow users with revoked certificates to bypass the intended CRL.

Frequently asked questions

What is CVE-2007-4994?: Certificate Server 7.2 in Red Hat Certificate System (RHCS) does not properly handle new revocations that occur while a Certificate Revocation List (CRL) is being generated, which might prevent certain revoked certificates from appearing on the CRL quickly and allow users with revoked certificates to bypass the intended CRL.
How severe is CVE-2007-4994?: CVE-2007-4994 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2007-4994 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-4994?: CVE-2007-4994 affects Redhat Certificate Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-4994?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2007-4994 published?: CVE-2007-4994 was published on 2007-11-06 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:redhat:certificate_server:7.2:*:*:*:*:*:*:*

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