TeleMessage TM SGNL Initialization of a Resource with an Insecure Default Vulnerability
TeleMessage · TM SGNL
TeleMessage's TM SGNL service has an insecure default configuration in which the Spring Boot Actuator heap dump endpoint is exposed at the /heapdump URI. An attacker with network access can reach that endpoint without authentication or user interaction, and under the configuration described, no special conditions beyond that are required.
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.
- Exploited
- Yes, in CISA KEV
- Reports
- 0
- Tactics
- 2/15
How an attack unfolds
Based on MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. mappings. Select a step to see the evidence.Exploitation timelineDated milestones for a CVE: when it was disclosed, when exploit code became public, when exploitation was confirmed, and when threat reports named it.
First seen exploited the day it was disclosed.
- Added to CISA KEVEU database agrees+34 days
CISA KEV listing is when exploitation was confirmed, not necessarily the first attack.
Patch historyEarlier and later CVEs in the same code, in date order. It shows when a fix was bypassed or incomplete and which version finally fixed it.
2 related vulnerabilities in the same code over 5 weeks.
Linked vulnerabilitiesLinked by evidence that a fix failed or the same code was patched again. Oldest first.
- This CVECVE-2025-48927TeleMessage TM SGNL Initialization of a Resource with an…28 May 2025KEV
relatedLow
Why these are linked: Link confidenceHow strong the evidence is that two CVEs are related. High: stated in the CVE text or linked in an advisory, or the same code was patched one release apart. Medium: the same code, or a version step plus a similar description. Low: similar description only.
- Stated in the CVE text
Zipkin through 3.5.1 has a /heapdump endpoint (associated with the use of Spring Boot Actuator), a similar issue to CVE-2025-48927.
- Stated in the CVE text
MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. techniques
3 TechniqueOne specific attacker behaviour in MITRE ATT&CK, such as T1190 “Exploit Public-Facing Application”. IDs with a dot, like T1059.004, are sub-techniques., grouped by TacticThe attacker’s goal at a stage of an attack in MITRE ATT&CK, such as Initial Access or Persistence. Each technique belongs to one or more tactics. in kill-chain order 3Credential AccessTA0006
TeleMessage TM SNGL's Spring Boot Actuator exposes the /heapdump endpoint publicly, allowing an unauthenticated attacker to access it.
CollectionTA0009
Detection
0 rules for this CVE · 27 general rules for its techniquesRules for this CVE
0Sigma ruleAn open, vendor-neutral detection rule for log data. Security teams convert Sigma rules into searches for their own SIEM. that reference CVE-2025-48927 directly.CVE-specific rules are not available in this build. Search SigmaHQ ↗
General rules for this CVE’s techniques
These detect the technique in general, not this specific vulnerability.
Exploitation for Credential AccessT12125 general rules
- Audit CVE Eventcriticaltest
- GALLIUM IOCshightest
- Guacamole Two Users Sharing Session Anomalyhightest
- Kerberos Manipulationhightest
- Suspicious NTLM Authentication on the Printer Spooler Servicehightest
Credentials from Password StoresT15558 general rules
- HackTool - SecurityXploded Executioncriticalstable
- DPAPI Backup Keys And Certificate Export Activity IOChightest
- HackTool - WinPwn Executionhightest
- HackTool - WinPwn Execution - ScriptBlockhightest
- Suspicious Serv-U Process Patternhightest
- Dump Credentials from Windows Credential Manager With PowerShellmediumtest
- Enumerate Credentials from Windows Credential Manager With PowerShellmediumtest
- PUA - AWS TruffleHog Executionmediumexperimental
Data from Local SystemT100514 general rules
- OpenCanary - SMB File Open Requesthightest
- Potential Conti Ransomware Database Dumping Activity Via SQLCmdhightest
- SQLite Chromium Profile Data DB Accesshightest
- SQLite Firefox Profile Data DB Accesshightest
- VeeamBackup Database Credentials Dump Via Sqlcmd.EXEhightest
- Script Interpreter Spawning Credential Scanner - Linuxhighexperimental
- Script Interpreter Spawning Credential Scanner - Windowshighexperimental
- Shai-Hulud NPM Package Malicious Exfiltration via Curlhighexperimental
Sigma rules © SigmaHQ, Detection Rule License 1.1; linked, not reproduced.
What security researchers reported
Not named in any threat report yetAlso mentioned in 50 community threat pulses (AlienVault OTX)
Weaker evidencePulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.
- Actively_Exploited_Kev | Oct 30, 202629 Oct 2026
- Actively_Exploited_Kev | Oct 29, 202628 Oct 2026
- Actively_Exploited_Kev | Oct 28, 202627 Oct 2026
- Actively_Exploited_Kev | Oct 27, 202626 Oct 2026
- Actively_Exploited_Kev | Oct 24, 202623 Oct 2026
- Actively_Exploited_Kev | Oct 23, 202622 Oct 2026
- 44 more on OTX