Medium severity · published May 8, 2025
CVE-2025-47729
TeleMessage TM SGNL Hidden Functionality Vulnerability
In wildKEV
4.9
CVSS
0.4%
EPSS
Yes
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 39% of CVEs
Exploited in the wildYes
CISA KEVListed May 12, 2025
Federal remediation dueJun 2, 2025
Ransomware campaign useNot known
Affected products
Which versions
AB
archiving backend · TeleMessage
through 2025-05-05 · source: vendor
TM
Text Message Archiver · Telemessage
through 2025-05-05 · source: NVD
TS
TM SGNL · TeleMessage
All versions, or not specified · source: KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-47729
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-47729
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
news.ycombinator.com
https://news.ycombinator.com/item?id=43909220
arstechnica.com
https://arstechnica.com/security/2025/05/signal-clone-used-by-trump-official-stops-operations-after-report-it-was-hacked/
www.theregister.com
https://www.theregister.com/2025/05/05/telemessage_investigating/