CVE-2025-47729

TeleMessage archiving backend

Published 8 May 2025 · updated 17 Jun 2026 · Analyzed

4.9 Medium · CVSS 3.1, NVD

Exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on 12 May 2025, with a remediation deadline of 2 Jun 2025 for US federal agencies.

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.

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.

References

arstechnica.com/security/2025/05/signal-clone-used-by-trump-official-stops-operations-after-report-it-was-hacked/ · Press/Media Coverage
news.ycombinator.com/item?id=43909220 · Press/Media Coverage
www.theregister.com/2025/05/05/telemessage_investigating/ · Press/Media Coverage
www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-47729 · US Government Resource