Medium severity · published Jul 21, 2025
CVE-2025-41677
Resource Exhaustion via POST Requests to send-mail Action
4.9
CVSS
0.7%
EPSS
No
On KEV
Description
A high privileged remote attacker can exhaust critical system resources by sending specifically crafted POST requests to the send-mail action in fast succession.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
R1
REX 100 · Helmholz
0.0.0 before 2.3.3 · source: vendor
MB
mbNET.mini · MB connect line
0.0.0 before 2.3.3 · source: vendor
MF
Mbnet.mini Firmware · Mbconnectline
before 2.3.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-41677
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-41677
Vendor Advisory
https://certvde.com/de/advisories/VDE-2025-058
Mailing List
http://seclists.org/fulldisclosure/2025/Jul/38
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