CVE Tools
Sign in

CVE-2025-25566

Published: Mar 12, 2025Updated: Jul 19, 2025 Sources: CVE List NVDCWE-401
NVD MITRE
5.6CVSSMEDIUM
EPSS Score
0.3%
Top 79.3%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
No Fix Available

Description

Memory Leak vulnerability in SoftEtherVPN 5.02.5187 allows an attacker to cause a denial of service via the UnixMemoryAlloc function. NOTE: the Supplier disputes this because the behavior is limited to a single allocation of a few hundred bytes with a command-line tool.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:LI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:LAvailability
Low
Open in CVSS calculator →

Weaknesses

CWE-401

Affected Products

n/an/a
vpnsoftether
On-prem
Networking Infrastructure / vpn-gateway
softetheross-projectNetworking Infrastructureaka softether vpn, softether vpn server

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details

References

https://lzydry.github.io/CVE-2025-25566/
lzydry.github.io
https://filecenter.softether-upload.com/d/250715_001_79538/CVE-2025-25566.pdf
filecenter.softether-upload.com

Timeline

Published
Mar 12, 2025
Last Updated
Jul 19, 2025

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2025-25566 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows