CVE-2025-48928: TeleMessage TM SGNL Exposure of Core Dump File to an Unauthorized Control Sphere Vulnerability

CISA Known Exploited Vulnerabilities

Name

TeleMessage TM SGNL Exposure of Core Dump File to an Unauthorized Control Sphere Vulnerability

Vendor

TeleMessage

Product

TM SGNL

Added to the catalog

2025-07-01

Due date for US federal agencies

2025-07-22

Weaknesses

CWE-528

Catalog version

2026.10.30

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.

Required action (CISA)

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Ransomware use: CISA does not mark known use of this vulnerability in ransomware campaigns.

Links in CISA's notes

• https://nvd.nist.gov/vuln/detail/CVE-2025-48928

Read on 2026-11-02T23:39:54.475Z under licence cisa-kev-cc0@b0067899 from https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

NVD analysis

Status

Analyzed

Published

2025-05-28T17:15:25.020

Last modified

2026-06-17T09:30:30.087

Weaknesses

CWE-528, CWE-552

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.

References

• https://www.wired.com/story/how-the-signal-knock-off-app-telemessage-got-hacked-in-20-minutes/ (Press/Media Coverage)
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-48928 (US Government Resource)

This product uses the NVD API but is not endorsed or certified by the NVD.

Read on 2026-11-02T23:42:22.836Z under licence nvd-api-terms-of-use@ff2a5288 from https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2025-48928

CVE record

Assigner

mitre

State

PUBLISHED

Published

2025-05-28T00:00:00.000Z

Updated

2026-02-26T18:27:52.827Z

Problem types

CWE-528 Exposure of Core Dump File to an Unauthorized Control Sphere

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.

References

• https://www.wired.com/story/how-the-signal-knock-off-app-telemessage-got-hacked-in-20-minutes/

Read on 2026-11-03T02:16:57.739Z under licence cve-terms-of-use@81bfa2f3 from https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2025/48xxx/CVE-2025-48928.json

Defensive techniques (MITRE D3FEND)

D3FEND maps these defensive techniques to the weakness (CWE) that NVD lists for this CVE, through the digital artifacts the weakness affects. D3FEND does not say they stop this vulnerability.

MITRE D3FEND™ knowledge graph. © 2025 The MITRE Corporation.
"The MITRE Corporation (MITRE) hereby grants you a non-exclusive, royalty-free license to use D3FEND for research, development, and commercial purposes. Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." Terms: https://d3fend.mitre.org/tou/