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CISA Known Exploited Vulnerabilities

TeleMessage TM SGNL Hidden Functionality Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV
2025-05-12
Remediation due
2025-06-02

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 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

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.

Severity

CVSS 3.1 · CNA1.9 LOW
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N
SSVC · CISA-ADP
Exploitationactive
Automatableno
Technical impactpartial

Affected Products

VendorProductAffected versions
TeleMessagearchiving backend
0 to 2025-05-05

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.