CVE-2025-14946
CVE-2025-14946 is a medium-severity vulnerability with a CVSS 3.x base score of 4.8. 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-88.
Key facts
- Severity: Medium (CVSS 3.x base score 4.8)
- EPSS exploit prediction: 0% (2nd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-204536
- Weakness: CWE-88
- Published:
- Last modified:
Description
A flaw was found in libnbd. A malicious actor could exploit this by convincing libnbd to open a specially crafted Uniform Resource Identifier (URI). This vulnerability arises because non-standard hostnames starting with '-o' are incorrectly interpreted as arguments to the Secure Shell (SSH) process, rather than as hostnames. This could lead to arbitrary code execution with the privileges of the user running libnbd.
Frequently asked questions
- What is CVE-2025-14946?
- A flaw was found in libnbd. A malicious actor could exploit this by convincing libnbd to open a specially crafted Uniform Resource Identifier (URI). This vulnerability arises because non-standard hostnames starting with '-o' are incorrectly interpreted as arguments to the Secure Shell (SSH) process, rather than as hostnames. This could lead to arbitrary code execution with the privileges of the user running libnbd.
- How severe is CVE-2025-14946?
- CVE-2025-14946 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
- Is CVE-2025-14946 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-14946?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-14946 have an EU (EUVD) identifier?
- Yes. CVE-2025-14946 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204536.
- When was CVE-2025-14946 published?
- CVE-2025-14946 was published on 2025-12-19 and last updated on 2026-06-17.
References
- https://access.redhat.com/security/cve/CVE-2025-14946
- https://bugzilla.redhat.com/show_bug.cgi?id=2423789
- https://libguestfs.org/libnbd-release-notes-1.24.1.html#Security
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