CVE-2025-12790
HIGHCVSS 7.4/10EPSS 0.31%
Last modified
CVE-2025-12790 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. A flaw was found in Rubygem MQTT. By default, the package used to not have hostname validation, resulting in possible Man-in-the-Middle (MITM) attack.. EPSS estimates a 0.31% chance of exploitation in the next 30 days.
Description
A flaw was found in Rubygem MQTT. By default, the package used to not have hostname validation, resulting in possible Man-in-the-Middle (MITM) attack.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2025-12790?
A flaw was found in Rubygem MQTT. By default, the package used to not have hostname validation, resulting in possible Man-in-the-Middle (MITM) attack.
How severe is CVE-2025-12790?
CVE-2025-12790 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.
How do I fix CVE-2025-12790?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2025-12790?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST