What is CVE-2025-67397?

CVE-2025-67397 is a critical-severity vulnerability in Passy, classified under Command Injection. CVSS score: 9.1/10. Published 2026-01-05.

How severe is CVE-2025-67397?

Critical severity. CVSS v3 base score is 9.1 out of 10.

RCE in Passy

CVE-2025-67397

An issue in Passy v.1.6.3 allows a remote authenticated attacker to execute arbitrary commands via a crafted HTTP request using a specific payload injection.

Vulnerability class: Command Injection (OS Command Injection)

Published 2026-01-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (53.8th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Passy — versions 1.6.3

Weakness classification (CWE)

CWE-77 — Command Injection

References

www.passy.it/ (Product)
github.com/giulioschiavone/Vulnerability-Research/tree/main/CVE-2025-67397 (Third Party Advisory)

Frequently asked questions

What is CVE-2025-67397?: CVE-2025-67397 is a critical-severity vulnerability in Passy, classified under Command Injection. CVSS score: 9.1/10. Published 2026-01-05.
How severe is CVE-2025-67397?: Critical severity. CVSS v3 base score is 9.1 out of 10.