CVEvulnerability
CVE-2025-47729
CISA Known Exploited Vulnerability
TeleMessage TM SGNL Hidden Functionality Vulnerability — TeleMessage TM SGNL
TeleMessage TM SGNL contains a hidden functionality vulnerability in which the archiving backend holds cleartext copies of messages from TM SGNL application users.
- Added to KEV
- 2025-05-12
- Remediation due
- 2025-06-02
- Ransomware use
- Unknown
- 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.
- Notes
- Apply mitigations per vendor instructions. Absent mitigating instructions from the vendor, discontinue use of the product. ; https://nvd.nist.gov/vuln/detail/CVE-2025-47729
- Status
- Analyzed
- Published
- 2025-05-08
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 1.9 LOW — CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N
- CVSS 3.1 ([email protected])
- 4.9 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-912
Description
The TeleMessage archiving backend through 2025-05-05 holds cleartext copies of messages from TM SGNL (aka Archive Signal) app users, which is different functionality than described in the TeleMessage "End-to-End encryption from the mobile phone through to the corporate archive" documentation, as exploited in the wild in May 2025.
Affected configurations
• telemessage text message archiver (<= 2025-05-05)
Related
Weakness · CWE (1)
- CWE-912 Hidden Functionality weakness
References
- https://arstechnica.com/security/2025/05/signal-clone-used-by-trump-official-stops-operations-after-report-it-was-hacked/ Press/Media Coverage
- https://news.ycombinator.com/item?id=43909220 Press/Media Coverage
- https://www.theregister.com/2025/05/05/telemessage_investigating/ Press/Media Coverage
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-47729 US Government Resource