Exploited. On CISA's list since 2025-07-01.
TeleMessage TM SGNL Exposure of Core Dump File to an Unauthorized Control Sphere Vulnerability
CVE-2025-48928 · TeleMessage TM SGNL · Published 2025-05-28
How bad would it be?
4.0 out of 10
CVSS rates it medium.
How likely is it to be used?
0.6%
Estimated chance of exploitation in the next 30 days, higher than 47% of all scored flaws (EPSS, 2026-10-29).
Is it already being used?
Yes
CISA has seen it exploited in real attacks. For US government agencies the fix is deadline passed 465 days ago (2025-07-22).
What CISA says to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
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.
What the flaw 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.
From the NVD.
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Understand the kind of weakness behind this flaw. These resources teach the weakness, rather than reproduce this specific CVE. Follow the vendor's advice above to fix the affected product.
CWE-528 · CISA KEV; NVD record: cve@mitre.org. We have not selected a close learning match for this label.
CWE-552 · NVD record: nvd@nist.gov. We have not selected a close learning match for this label.
CWE is a catalogue of weakness types. Labels come from the sources shown and can differ or change. Resource matches reviewed 16 October 2026.
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Exploited flaws from CISA's KEV catalogue. Chance of exploitation from EPSS by FIRST. Descriptions and scores from the NVD. This product uses the NVD API but is not endorsed or certified by the NVD.