How severe is CVE-2025-67901?

CVE-2025-67901 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-67901 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-67901?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-67901 have an EU (EUVD) identifier?

Yes. CVE-2025-67901 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203316.

When was CVE-2025-67901 published?

CVE-2025-67901 was published on 2025-12-15 and last updated on 2026-06-17.

CVE-2025-67901

CVE-2025-67901 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1284.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-203316
Weakness: CWE-1284
Published: 2025-12-15
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2025-67901?: 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.
How severe is CVE-2025-67901?: CVE-2025-67901 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-67901 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-67901?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-67901 have an EU (EUVD) identifier?: Yes. CVE-2025-67901 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203316.
When was CVE-2025-67901 published?: CVE-2025-67901 was published on 2025-12-15 and last updated on 2026-06-17.

References

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