CVE-2025-48928 TeleMessage TM SGNL: information leak
In plain words: The program reveals information it should keep private. Leaked secrets — tokens, passwords or memory contents — that help a bigger attack.
Confirmed exploited by CISA on · US federal patch deadline Jul 22, 2025
What to do
- Install TeleMessage's security update for TM SGNL. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Keep a list of every internet-facing server you run so nothing is forgotten.
- Patch anything in this catalog first, ahead of normal patch cycles.
- Put admin and file-transfer apps behind a VPN or single sign-on instead of the open internet.
Who is affected
Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.
What's at risk: Mass data theft and ransomware: a single flaw in a file-transfer or email server has exposed thousands of organisations at once.
The details
- Official name
- TeleMessage TM SGNL Exposure of Core Dump File to an Unauthorized Control Sphere Vulnerability
- Product
- TeleMessage TM SGNL
- CISA description
- TeleMessage TM SGNL contains an exposure of core dump file to an unauthorized control sphere Vulnerability. This vulnerability is based on a JSP application in which the heap content is roughly equivalent to a "core dump" in which a password previously sent over HTTP would be included in this dump.
- Type of flaw
- Information leak (CWE-528)
- Confirmed exploited
- Jul 1, 2025
- US federal patch deadline
- Jul 22, 2025
Ask Cleus about it
Ask about a vulnerability, an update, a weird message, or the news. Plain-word answers, free, no account.
Answering about CVE-2025-48928 ·
Questions about CVE-2025-48928
Is CVE-2025-48928 being exploited?
Yes. CISA added CVE-2025-48928 to its Known Exploited Vulnerabilities catalog on Jul 1, 2025, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2025-48928?
Install TeleMessage's security update for TM SGNL. If no update exists, follow the vendor's workaround or stop using the product until one ships. Keep a list of every internet-facing server you run so nothing is forgotten.
Am I affected by CVE-2025-48928?
Only if you use TeleMessage TM SGNL. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.