SoftEther VPN 5.02.5187 Command.c CheckNetworkAcceptThread use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability has been found in SoftEther VPN 5.02.5187 and classified as critical. Affected by this issue is the function CheckNetworkAcceptThread of the file Command.c. This manipulation causes use after free. This vulnerability is registered as CVE-2025-25568. No exploit is available.

Detailsinfo

A vulnerability classified as critical was found in SoftEther VPN 5.02.5187. Affected by this vulnerability is the function CheckNetworkAcceptThread of the file Command.c. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

SoftEtherVPN 5.02.5187 is vulnerable to Use after Free in the Command.c file via the CheckNetworkAcceptThread function.

It is possible to read the advisory at lzydry.github.io. This vulnerability is known as CVE-2025-25568 since 02/07/2025. The exploitation appears to be easy. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/19/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-6774). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/07/2025 🔍
03/12/2025 +33 days 🔍
03/12/2025 +0 days 🔍
07/19/2025 +129 days 🔍

Sourcesinfo

Advisory: lzydry.github.io
Status: Not defined

CVE: CVE-2025-25568 (🔍)
GCVE (CVE): GCVE-0-2025-25568
GCVE (VulDB): GCVE-100-299575
EUVD: 🔍

Entryinfo

Created: 03/12/2025 17:04
Updated: 07/19/2025 09:30
Changes: 03/12/2025 17:04 (55), 06/07/2025 18:29 (1), 07/19/2025 09:30 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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