Security Digest · Vulnerability record · Known exploited
CVE-2025-48927: TeleMessage TM SGNL Initialization of a Resource with an Insecure Default Vulnerability
Exploited in the wild (CISA KEV). 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.
CISA KEV · added 2025-07-01 CVSS 5.3 Medium EPSS 11.1% · p96
Should you act?
Exploited: patch now if you run it
CISA has confirmed exploitation in the wild. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- Yes, if you run TeleMessage TM SGNL. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2025-07-01, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2025-07-22; treat that as the outer limit, not the target.
- EPSS 11.1%, percentile 96: FIRST’s model estimates a 11.1% chance of exploitation activity in the next 30 days, higher than 96% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
What it is
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.
CISA’s summary
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.
Weakness type: CWE-1188.
Product: TeleMessage TM SGNL · Assigned by: mitre · Published: 2025-05-28
Affected and fixed versions
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| TeleMessage | service | <= 2025-05-05 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| mitre | 3.1 | 5.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Privileges required: none (no login)
- User interaction: none
- Scope: unchanged
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: added 2025-07-01; federal due date 2025-07-22. Known ransomware use: Unknown.
- CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active, automatable yes, technical impact partial.
- FIRST EPSS (model of 2026-10-21): 11.10% probability of exploitation activity in the next 30 days; percentile 96.
Timeline
- — CVE record published by mitre
- — Added to CISA’s Known Exploited Vulnerabilities catalog
- — CISA remediation deadline for US federal agencies
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vulnerability records
- CVE.org record CVE-2025-48927 cve.org
- NVD entry CVE-2025-48927 nvd.nist.gov
Government
Other references from the CVE record and advisory
- wired.com wired.com
All exploited TeleMessage vulnerabilities · Today’s Security Digest