CVE-2025-47729

TeleMessage TM SGNL: Hidden Functionality

As of , CVE-2025-47729 in TeleMessage TM SGNL is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch soon.

Exploited
Yes: CISA listed it on 12 May 2025
US federal deadline
2 June 202521 days after CISA listed it. US federal civilian agencies must fix it by then.
Used in ransomware campaigns
Not known to CISA
EPSS score
0.00Higher than 36% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
Public exploit
None foundNeither Metasploit nor Exploit-DB lists one.
Fix
No vendor link in CISA's entry

What CISA says to do

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's required action

What the flaw is

TeleMessage TM SGNL contains a hidden functionality vulnerability in which the archiving backend holds cleartext copies of messages from TM SGNL application users.

CISA's 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.

The CVE record's description, from mitre

CVE published
8 May 2025
Assigned by
mitre
CVSS
1.9 Low (CVSS 3.1, from the CNA)
CWE-912
Hidden Functionality
CISA SSVC, exploitation
active
CISA SSVC, automatable
no
CISA SSVC, technical impact
partial

Timeline

  1. The CVE record was published.
  2. CISA added it to its list of exploited vulnerabilities.
  3. The US federal deadline to fix it.

TM SGNL: other exploited entries

VulnerabilityProductOur groupListedDeadlineEPSS
CVE-2025-48927Initialization of a Resource with an Insecure DefaultTeleMessage TM SGNLPatch soon0.11
CVE-2025-48928Exposure of Core Dump File to an Unauthorized Control SphereTeleMessage TM SGNLPatch soon0.01

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