{"id":"CVE-2025-47729","kind":"vulnerability","aliases":["CVE-2025-47729"],"related":[],"title":"telemessage text message archiver: The TeleMessage archiving backend through 2025-05-05 holds cleartext copies of messages from TM SGNL (aka Archive…","description":"TeleMessage TM SGNL contains a hidden functionality vulnerability in which the archiving backend holds cleartext copies of messages from TM SGNL application users.\n\nCISA 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.","summary":"TeleMessage TM SGNL is a hosted archiving service for Signal-style messages, and its archiving backend stores cleartext copies of users' messages. An attacker who gets into that backend can read message content that users expected to be end-to-end encrypted.","severity":"medium","cvss":4.9,"epss":null,"exploited":true,"exploited_at":"2025-05-12T00:00:00+00:00","products":[{"name":"TeleMessage TM SGNL","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"telemessage text message archiver","fixed":[],"affected":"<= 2025-05-05","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["archiving","exploited","mobile","telemessage","tm-sgnl","vendor"],"not_affected_if":["no-tm-sgnl-usage"],"how_to_check":"Check whether your organization uses TeleMessage TM SGNL for message archiving or on any device that runs the TM SGNL app.","fix":"Apply the mitigations from the vendor, or discontinue use of TM SGNL if mitigations are unavailable, per the CISA required action.","status":"open","published_at":"2025-05-08T14:15:26+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:48:38+00:00","updated_at":"2026-10-23T22:29:05+00:00","category":"vendor","confidence":0.5,"triage":{"at":"2026-10-23T20:48:38Z","model":"claude-haiku-5-5","output":{"fix":"Apply the mitigations from the vendor, or discontinue use of TM SGNL if mitigations are unavailable, per the CISA required action.\nUnknown which exact version or setting is fixed.","reach":"internet","summary":"TeleMessage TM SGNL is a hosted archiving service for Signal-style messages, and its archiving backend stores cleartext copies of users' messages. An attacker who gets into that backend can read message content that users expected to be end-to-end encrypted.","category":"vendor","who_cares":["telemessage","tm-sgnl","mobile","archiving"],"confidence":0.5,"needs_auth":"unknown","worst_case":"Attacker reads cleartext archived messages from users of the TM SGNL app.","analyst_note":"Find the vendor advisory and the fixed version or mitigation steps; the KEV entry alone does not say what to change, and the sources do not confirm the attack path.","how_to_check":"Check whether your organization uses TeleMessage TM SGNL for message archiving or on any device that runs the TM SGNL app.\nunknown","needs_analyst":true,"not_affected_if":["no-tm-sgnl-usage"],"user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000474,"input_tokens":2544,"output_tokens":440,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-01':123C '-05':11A,12A '-2025':24A,27A '-47729':25A,28A '2025':10A '22':122C 'action':113C 'aka':21A 'appli':114C 'applic':109C,120C 'archiv':4A,7A,22A,36B,50B,59B,99C 'archiver':35A 'attack':68B 'backend':8A,60B,73B,100C 'bod':121C 'cisa':111C 'cleartext':14A,62B,102C 'cloud':126C 'contain':91C 'content':77B 'copi':15A,63B,103C 'cve':23A,26A 'discontinu':129C 'encrypt':87B 'end':84B,86B 'end-to-end':83B 'expect':80B 'exploit':37B 'follow':119C 'function':94C 'get':70B 'guidanc':124C 'hidden':93C 'hold':13A,101C 'host':49B 'instruct':118C 'messag':3A,17A,56B,66B,76B,105C 'message':34A 'mitig':115C,135C 'mobil':38B 'per':116C 'product':133C 'read':75B 'requir':112C 'servic':51B,127C 'sgnl':20A,31A,42B,46B,90C,108C 'signal':54B 'signal-styl':53B 'store':61B 'style':55B 'telemessag':1A,6A,39B,44B,88C 'telemessage':29A,32A 'text':2A,33A 'tm':19A,30A,41B,45B,89C,107C 'tm-sgnl':40B 'unavail':137C 'use':130C 'user':65B,79B,110C 'vendor':43B,117C 'vulner':95C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2025-05-08T14:15:26+00:00","kev":{"dateAdded":"2025-05-12","dueDate":"2025-06-02","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N","cvss_by":"cve@mitre.org","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2025-47729","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-47729","severity":null,"published_at":"2025-05-12T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T20:35:32+00:00","note":null},{"source":"nvd","external_id":"CVE-2025-47729","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-47729","severity":null,"published_at":"2025-05-08T14:15:26+00:00","modified_at":"2026-06-17T09:28:37+00:00","first_seen_at":"2026-10-23T22:29:05+00:00","fetched_at":"2026-10-23T22:29:05+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}