CVE-2025-3927

Name: CVE-2025-3927
Creator: NVD / NIST
Published: 2025-05-02T15:15:49.017+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.52%

Last modified Jun 17, 2026

CVE-2025-3927 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Digigram's PYKO-OUT audio-over-IP (AoIP) web-server does not require a password by default, allowing any attacker with the target IP address to connect and compromise the device, potentially pivoting to connected network or hardware devices.. EPSS estimates a 0.52% chance of exploitation in the next 30 days.

Description

Digigram's PYKO-OUT audio-over-IP (AoIP) web-server does not require a password by default, allowing any attacker with the target IP address to connect and compromise the device, potentially pivoting to connected network or hardware devices.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.52%

40.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-862

Affected Software

Vendor	Product	Versions
Digigram	Pyko-Out	All versions

References

https://www.digigram.com/download/pyko-out-user-manual-en-jan-2019/Product
https://www.kb.cert.org/vuls/id/360686Third Party Advisory

Timeline

Published: May 2, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-3927?

How severe is CVE-2025-3927?

CVE-2025-3927 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.52% probability of exploitation in the next 30 days.

How do I fix CVE-2025-3927?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-3927?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST