Medium severity · published May 28, 2025
CVE-2025-48928
TeleMessage TM SGNL Exposure of Core Dump File to an Unauthorized Control Sphere Vulnerability
In wildKEV
4.0
CVSS
0.6%
EPSS
Yes
On KEV
Description
The TeleMessage service through 2025-05-05 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, as exploited in the wild in May 2025.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 47% of CVEs
Exploited in the wildYes
CISA KEVListed Jul 1, 2025
Federal remediation dueJul 22, 2025
Ransomware campaign useNot known
Affected products
Which versions
SE
service · TeleMessage
through 2025-05-05 · source: vendor
TE
Telemessage · Smarsh
All versions, or not specified · source: NVD
TS
TM SGNL · TeleMessage
All versions, or not specified · source: KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-48928
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-48928
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
www.wired.com
https://www.wired.com/story/how-the-signal-knock-off-app-telemessage-got-hacked-in-20-minutes/
More from service
5.3
CVE-2025-48927
TeleMessage TM SGNL Initialization of a Resource with an Insecure Default Vulnerability
9.8
CVE-2025-48929
The TeleMessage service through 2025-05-05 implements authentication through a long-lived credential (e.g., not a token with a short expiration time) that can be reused at a later…
7.5
CVE-2025-48926
The admin panel in the TeleMessage service through 2025-05-05 allows attackers to discover usernames, e-mail addresses, passwords, and telephone numbers
7.5
CVE-2025-48925
The TeleMessage service through 2025-05-05 relies on the client side (e.g., the TM SGNL app) to do MD5 hashing, and then accepts the hash as the authentication credential
5.5
CVE-2025-48931
The TeleMessage service through 2025-05-05 relies on MD5 for password hashing, which opens up various attack possibilities (including rainbow tables) with low computational effort