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CVE-2025-48927: TeleMessage TM SGNL Initialization of a Resource with an Insecure Default Vulnerability

criticalknown exploitedCVE-2025-48927
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
TeleMessage TM SGNL contains an initialization of a resource with an insecure default vulnerability. This vulnerability relies on how the Spring Boot Actuator is configured with an exposed heap dump endpoint at a /heapdump URI.

CSIRTS triage

vendor: TeleMessageproduct: TM SGNLMisconfiguration
What
TM SGNL contains an initialization of a resource with an insecure default vulnerability related to Spring Boot Actuator configuration.
Who is affected
Deployments of TeleMessage TM SGNL that expose the heap dump endpoint are vulnerable.
Urgency
This is a critical vulnerability with confirmed exploitation, requiring immediate remediation.
Action
Reconfigure the Spring Boot Actuator settings and apply any available updates.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2025-07-01
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-48927

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2025-48927coverage & exploitation statusNVD · CVE.org

Recent advisories for TeleMessage TM SGNL

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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