How severe is CVE-2020-11628?

CVE-2020-11628 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2020-11628 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11628?

CVE-2020-11628 affects Primekey Ejbca. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-11628?

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

When was CVE-2020-11628 published?

CVE-2020-11628 was published on 2020-04-08 and last updated on 2026-06-17.

CVE-2020-11628

CVE-2020-11628 is a medium-severity vulnerability in Primekey Ejbca with a CVSS 3.x base score of 5.3. 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-863.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Primekey Ejbca
Published: 2020-04-08
Last modified: 2026-06-17

Description

An issue was discovered in EJBCA before 6.15.2.6 and 7.x before 7.3.1.2. It is intended to support restriction of available remote protocols (CMP, ACME, REST, etc.) through the system configuration. These restrictions can be bypassed by modifying the URI string from a client. (EJBCA's internal access control restrictions are still in place, and each respective protocol must be configured to allow for enrollment.)

Frequently asked questions

What is CVE-2020-11628?: An issue was discovered in EJBCA before 6.15.2.6 and 7.x before 7.3.1.2. It is intended to support restriction of available remote protocols (CMP, ACME, REST, etc.) through the system configuration. These restrictions can be bypassed by modifying the URI string from a client. (EJBCA's internal access control restrictions are still in place, and each respective protocol must be configured to allow for enrollment.)
How severe is CVE-2020-11628?: CVE-2020-11628 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2020-11628 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11628?: CVE-2020-11628 affects Primekey Ejbca. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-11628?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-11628 published?: CVE-2020-11628 was published on 2020-04-08 and last updated on 2026-06-17.

References

https://support.primekey.com/news/posts/ejbca-security-advisory-protocol-access-control-bypass

Affected products (1)

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

More vulnerabilities in Primekey Ejbca

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CVE-2020-11631 — Medium (CVSS 6.5): An issue was discovered in EJBCA before 6.15.2.6 and 7.x before 7.3.1.2. An error state can be generated in the CA UI…

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