PatchTheCVECVE-2025-58123: Improper Certificate Validation in Checkmk Exchange plugin BGP Monitoring allows attackers in MitM position to
CVE-2025-58123 is a medium-severity flaw (CVSS 4.8) affecting bgp monitoring. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Improper Certificate Validation in Checkmk Exchange plugin BGP Monitoring allows attackers in MitM position to intercept traffic.
Why this priority
- Remotely exploitable, no login, no user action
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 4.8 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.1% (top 99%) |
| CISA exploited list | No |
| Weakness | CWE-295 |
| Published | 2025-08-28 |
| Last modified | 2026-09-26 |
Last updated 2026-09-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2025-58123?
bgp monitoring: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2025-58123 being exploited?
CVE-2025-58123 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2025-58123 affect?
CVE-2025-58123 affects bgp monitoring. Severity is medium (CVSS 4.8). Improper Certificate Validation in Checkmk Exchange plugin BGP Monitoring allows attackers in MitM position to intercept traffic.
How urgent is CVE-2025-58123?
Priority 22/100. Remotely exploitable, no login, no user action