Description

SoftEtherVPN is a an open-source cross-platform multi-protocol VPN Program. Versions 5.02.5184 to 5.02.5187 are vulnerable to NULL dereference in `DeleteIPv6DefaultRouterInRA` called by `StorePacket`. Before dereferencing, `DeleteIPv6DefaultRouterInRA` does not account for `ParsePacket` returning NULL, resulting in the program crashing. A patched version does not exist at this time.

Classification

CVE ID: CVE-2025-32787

CVSS Base Severity: LOW

CVSS Base Score: 3.1

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

Affected Products

Vendor: SoftEtherVPN

Product: SoftEtherVPN

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.03% (probability of being exploited)

EPSS Percentile: 7.54% (scored less or equal to compared to others)

EPSS Date: 2025-04-18 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-32787
https://github.com/SoftEtherVPN/SoftEtherVPN/security/advisories/GHSA-xw53-587j-mqh6
https://github.com/SoftEtherVPN/SoftEtherVPN/blob/7006539732c0231d7723623cc8732f94ba2b8c54/src/Cedar/Hub.c#L5112C1-L5116C29
https://github.com/SoftEtherVPN/SoftEtherVPN/blob/master/src/Mayaqua/TcpIp.c#L1633

Timeline