How severe is CVE-2020-11630?

CVE-2020-11630 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-11630 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11630?

CVE-2020-11630 affects Primekey Ejbca. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-11630?

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

When was CVE-2020-11630 published?

CVE-2020-11630 was published on 2020-04-08 and last updated on 2026-06-17.

CVE-2020-11630

CVE-2020-11630 is a critical-severity vulnerability in Primekey Ejbca with a CVSS 3.x base score of 9.8. 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-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
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. In several sections of code, the verification of serialized objects sent between nodes (connected via the Peers protocol) allows insecure objects to be deserialized.

Frequently asked questions

What is CVE-2020-11630?: An issue was discovered in EJBCA before 6.15.2.6 and 7.x before 7.3.1.2. In several sections of code, the verification of serialized objects sent between nodes (connected via the Peers protocol) allows insecure objects to be deserialized.
How severe is CVE-2020-11630?: CVE-2020-11630 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-11630 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11630?: CVE-2020-11630 affects Primekey Ejbca. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-11630?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-11630 published?: CVE-2020-11630 was published on 2020-04-08 and last updated on 2026-06-17.

References

https://support.primekey.com/news/posts/ejbca-security-advisory-deserialization-bug

Affected products (1)

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

More vulnerabilities in Primekey Ejbca

CVE-2022-34831 — Critical (CVSS 9.8): An issue was discovered in Keyfactor PrimeKey EJBCA before 7.9.0, related to possible inconsistencies in DNS…
CVE-2020-11627 — High (CVSS 8.8): An issue was discovered in EJBCA before 6.15.2.6 and 7.x before 7.3.1.2. A Cross Site Request Forgery (CSRF) issue has…
CVE-2020-25276 — High (CVSS 7.3): 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…
CVE-2020-11629 — High (CVSS 7.2): An issue was discovered in EJBCA before 6.15.2.6 and 7.x before 7.3.1.2. The External Command Certificate Validator,…
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…
CVE-2025-3027 — Medium (CVSS 6.1): The vulnerability exists in the EJBCA service, version 8.0 Enterprise. By making a small change to the PATH of the URL…

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