CVE-2025-1075: Checkmk · Sensitive Data in Logs
Affects CheckmkSource CVE Database V5
Not known to be exploited · CVSS 5.6 Medium.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 24% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 19 Feb 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Checkmk GmbH Checkmk | Affected
| Fixed in– |
AI-suggested
European organizations should immediately upgrade Checkmk to versions 2.3.0p27, 2.2.0p40, or 2.1.0p51 or later where the vulnerability is patched. If immediate upgrading is not feasible, restrict access to Apache error log files to only trusted administrators using strict file permissions and access controls. Implement log monitoring and auditing to detect any unauthorized access or suspicious activity involving log files. Consider configuring Checkmk and Apache to minimize logging of sensitive information, possibly by adjusting log verbosity or sanitizing log entries. Employ network segmentation and least privilege principles to limit who can access systems running Checkmk and their logs. Additionally, rotate LDAP credentials that may have been exposed and review authentication logs for signs of misuse. Educate administrators about the risk of sensitive data in logs and enforce secure handling of log files. Finally, integrate this vulnerability into vulnerability management and incident response processes to ensure timely detection and remediation.
Description
Insertion of Sensitive Information into Log File in Checkmk GmbH's Checkmk versions <2.3.0p27, <2.2.0p40, and 2.1.0p51 (EOL) causes LDAP credentials to be written to Apache error log file accessible to administrators.