How severe is CVE-2020-25276?

CVE-2020-25276 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2020-25276 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-25276?

CVE-2020-25276 affects Primekey Ejbca. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-25276?

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-2020-25276 published?

CVE-2020-25276 was published on 2020-09-11 and last updated on 2026-06-17.

CVE-2020-25276

CVE-2020-25276 is a high-severity vulnerability in Primekey Ejbca with a CVSS 3.x base score of 7.3. 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-295.

Key facts

Severity: High (CVSS 3.x base score 7.3)
CVSS v2: 6.8
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-295
Affected product: Primekey Ejbca
Published: 2020-09-11
Last modified: 2026-06-17

Description

An issue was discovered in PrimeKey EJBCA 6.x and 7.x before 7.4.1. When using a client certificate to enroll over the EST protocol, no revocation check is performed on that certificate. This vulnerability can only affect a system that has EST configured, uses client certificates to authenticate enrollment, and has had such a certificate revoked. This certificate needs to belong to a role that is authorized to enroll new end entities. (To completely mitigate this problem prior to upgrade, remove any revoked client certificates from their respective roles.)

Frequently asked questions

What is CVE-2020-25276?: An issue was discovered in PrimeKey EJBCA 6.x and 7.x before 7.4.1. When using a client certificate to enroll over the EST protocol, no revocation check is performed on that certificate. This vulnerability can only affect a system that has EST configured, uses client certificates to authenticate enrollment, and has had such a certificate revoked. This certificate needs to belong to a role that is authorized to enroll new end entities. (To completely mitigate this problem prior to upgrade, remove any revoked client certificates from their respective roles.)
How severe is CVE-2020-25276?: CVE-2020-25276 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2020-25276 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-25276?: CVE-2020-25276 affects Primekey Ejbca. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-25276?: 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-2020-25276 published?: CVE-2020-25276 was published on 2020-09-11 and last updated on 2026-06-17.

References

https://support.primekey.com/news/posts/ejbca-security-advisory-revocation-check-not-performed-on-est-client-certificate

Affected products (1)

cpe:2.3:a:primekey:ejbca:*:*:*:*:enterprise:*:*:*

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