Strix
26.1K

CVE-2025-25566

MEDIUMCVSS 5.6/10EPSS 0.29%

Last modified

CVE-2025-25566 is a medium-severity vulnerability rated 5.6/10 on the CVSS scale. 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.. EPSS estimates a 0.29% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
5.6/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

EPSS Probability
0.29%

20.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
SoftetherVpn5.02.5187

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2025-25566?
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.
How severe is CVE-2025-25566?
CVE-2025-25566 has a CVSS score of 5.6/10 (MEDIUM severity). The EPSS model estimates a 0.29% probability of exploitation in the next 30 days.
How do I fix CVE-2025-25566?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-25566?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST