What is CVE-2025-47729?

CVE-2025-47729 is a low-severity vulnerability in Telemessage Archiving Backend, classified under Hidden Functionality. CVSS score: 1.9/10. Published 2025-05-08.

How severe is CVE-2025-47729?

Low severity. CVSS v3 base score is 1.9 out of 10.

Is CVE-2025-47729 known to be exploited?

Yes. CVE-2025-47729 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-05-12), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.

Vulnerability in Telemessage Archiving Backend

CVE-2025-47729

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.

Published 2025-05-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 1.9 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (37.4th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

Telemessage Archiving Backend — versions 0
Telemessage Text Message Archiver

Weakness classification (CWE)

CWE-912 — Hidden Functionality

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2025-05-12. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 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.

Public proof-of-concept exploits

References

news.ycombinator.com/item (Press/Media Coverage)
arstechnica.com/security/2025/05/signal-clone-used-by-trump-official-stops-oper… (Press/Media Coverage)
www.theregister.com/2025/05/05/telemessage_investigating/ (Press/Media Coverage)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2025-47729?: CVE-2025-47729 is a low-severity vulnerability in Telemessage Archiving Backend, classified under Hidden Functionality. CVSS score: 1.9/10. Published 2025-05-08.
How severe is CVE-2025-47729?: Low severity. CVSS v3 base score is 1.9 out of 10.
Is CVE-2025-47729 known to be exploited?: Yes. CVE-2025-47729 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-05-12), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.