CVE-2021-40088
MEDIUM
Published Aug 25, 20214y ago · Modified Jun 17, 20262w ago
5.4 CVSS 3.1
Published Aug 25, 2021 4y ago
Last Modified Jun 17, 2026 2w ago
Description
An issue was discovered in PrimeKey EJBCA before 7.6.0. CMP RA Mode can be configured to use a known client certificate to authenticate enrolling clients. The same RA client certificate is used for revocation requests as well. While enrollment enforces multi tenancy constraints (by verifying that the client certificate has access to the CA and Profiles being enrolled against), this check was not performed when authenticating revocation operations, allowing a known tenant to revoke a certificate belonging to another tenant.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Low
Availability Low
Threat Intelligence
No active exploitation signals — not in CISA KEV and no EPSS score yet.
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-862 Missing Authorization Authorization
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| primekey | ejbca | * | <7.6.0 |
References 1
- support.primekey.com https://support.primekey.com/news/posts/51
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.