PatchTheCVECVE-2025-58126: Improper Certificate Validation in Checkmk Exchange plugin VMware vSAN allows attackers in MitM position to in
CVE-2025-58126 is a medium-severity flaw (CVSS 4.8) affecting vmware vsan. 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 VMware vSAN 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-2025-58126?
vmware vsan: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2025-58126 being exploited?
CVE-2025-58126 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-2025-58126 affect?
CVE-2025-58126 affects vmware vsan. Severity is medium (CVSS 4.8). Improper Certificate Validation in Checkmk Exchange plugin VMware vSAN allows attackers in MitM position to intercept traffic.
How urgent is CVE-2025-58126?
Priority 22/100. Remotely exploitable, no login, no user action