Vulnerability · Published Apr 16, 2025 · Assigned by GitHub_M

CVE-2025-32787SoftEtherVPN Affected by NULL dereference in DeleteIPv6DefaultRouterInRA

Low 3.1

In plain English

A low-severity null pointer dereference in SoftEtherVPN from SoftEtherVPN. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities).

Severity (CVSS 3.1)3.1Low

Exploit odds (30 days)0.4%top 65.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
SoftEtherVPN	SoftEtherVPN	>= 5.02.5184, <= 5.02.5187

Weakness: CWE-476 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

References

https://github.com/SoftEtherVPN/SoftEtherVPN/security/advisories/GHSA-xw53-587j-mqh6 x_refsource_CONFIRM
https://github.com/SoftEtherVPN/SoftEtherVPN/blob/7006539732c0231d7723623cc8732f94ba2b8c54/src/Cedar/Hub.c#L5112C1-L5116C29 x_refsource_MISC
https://github.com/SoftEtherVPN/SoftEtherVPN/blob/master/src/Mayaqua/TcpIp.c#L1633 x_refsource_MISC