CVE-2025-48927
TeleMessage TM SGNL Initialization of a Resource with an Insecure Default Vulnerability
TeleMessage TM SGNL
The TeleMessage service through 2025-05-05 configures Spring Boot Actuator with an exposed heap dump endpoint at a /heapdump URI, as exploited in the wild in May 2025.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 1 July 2025. US federal agencies were required to remediate it by 22 July 2025.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 11.1%, which is higher than 95.8% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Frequently asked questions
Is CVE-2025-48927 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2025-48927.
What does CVE-2025-48927 affect?
CVE-2025-48927 affects TeleMessage TM SGNL. The TeleMessage service through 2025-05-05 configures Spring Boot Actuator with an exposed heap dump endpoint at a /heapdump URI, as exploited in the wild in May 2025.
How severe is CVE-2025-48927?
CVE-2025-48927 is rated MEDIUM with a CVSS base score of 5.3. EPSS puts the probability of exploitation in the next 30 days at 11.1%, higher than 95.8% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 22 July 2025.
How should organisations respond to CVE-2025-48927?
Apply the vendor patch for TeleMessage TM SGNL as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.