CVE-2025-58125: Improper Certificate Validation in Checkmk Exchange plugin Freebox v6 agent allows attackers in MitM position

Routine

MEDIUM 4.8REMOTEMITIGATE

CVE-2025-58125 is a medium-severity flaw (CVSS 4.8) affecting freebox v6 agent. 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 Freebox v6 agent 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

Publisher (CNA): Checkmk GmbH · Vendor: pawelko

Last updated 2026-09-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-08-28 13:16 UTCPublished CVE record published
2026-09-26 00:10 UTCUpdated Record last modified

pawelko freebox v6 agent MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy freebox-v6-agent || rpm -q freebox-v6-agent || freebox-v6-agent --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
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-2025-58125?

freebox v6 agent: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-58125 being exploited?

CVE-2025-58125 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-2025-58125 affect?

CVE-2025-58125 affects freebox v6 agent. Severity is medium (CVSS 4.8). Improper Certificate Validation in Checkmk Exchange plugin Freebox v6 agent allows attackers in MitM position to intercept traffic.

How urgent is CVE-2025-58125?

Priority 22/100. Remotely exploitable, no login, no user action

References

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