CVE-2025-67901

CVSS 5.3 MEDIUMEPSS 0.2%CWE-1284

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.3EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

14 Dec 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

openrsync through 0.5.0, as used in OpenBSD through 7.8 and on other platforms, allows a client to cause a server SIGSEGV by specifying a length of zero for block data, because the relationship between p->rem and p->len is not checked.

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

Affected products

kristapsdz · openrsync

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →

References

https://github.com/kristapsdz/openrsync/issues/34 https://github.com/openbsd/src/blob/60b9c3dff1abf933e85e3c4d96b54201ee947513/usr.bin/rsync/blocks.c#L480-L481