Security Digest · Vulnerability record · Known exploited
CVE-2025-48928: TeleMessage TM SGNL Exposure of Core Dump File to an Unauthorized Control Sphere Vulnerability
Exploited in the wild (CISA KEV). The TeleMessage service through 2025-05-05 is based on a JSP application in which the heap content is roughly equivalent to a "core dump" in which a password previously sent over HTTP would be included in this dump, as exploited in the wild in May 2025.
CISA KEV · added 2025-07-01 CVSS 4.0 Medium EPSS 0.6% · p45
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 0.6%, percentile 45: FIRST’s model estimates a 0.6% chance of exploitation activity in the next 30 days, higher than 45% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Needs local access needed. Lower urgency for most teams unless an attacker could already run code on the machine.
What it is
The TeleMessage service through 2025-05-05 is based on a JSP application in which the heap content is roughly equivalent to a "core dump" in which a password previously sent over HTTP would be included in this dump, as exploited in the wild in May 2025.
CISA’s summary
TeleMessage TM SGNL contains an exposure of core dump file to an unauthorized control sphere Vulnerability. This vulnerability is based on a JSP application in which the heap content is roughly equivalent to a "core dump" in which a password previously sent over HTTP would be included in this dump.
Weakness type: CWE-528.
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 | 4 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
- Attack vector: local access needed
- 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 no, technical impact partial.
- FIRST EPSS (model of 2026-10-21): 0.55% probability of exploitation activity in the next 30 days; percentile 45.
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-2025-48928 cve.org
- NVD entry CVE-2025-48928 nvd.nist.gov
Government
Other references from the CVE record and advisory
- wired.com wired.com
All exploited TeleMessage vulnerabilities · Today’s Security Digest