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CVE-2025-3927

28
FAUCET Score

CVE-2025-3927 describes a critical vulnerability in Digigram PYKO-OUT audio-over-IP (AoIP) web servers, where the default configuration lacks a password. This allows any attacker with network access to the device's IP address to connect, compromise the system, and potentially pivot to other connected network or hardware devices. With a CVSS score of 9.8 (CRITICAL), the vulnerability is easily exploitable over the network without user interaction, leading to complete compromise of confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, nor are there publicly available exploit tools like Metasploit or Nuclei modules, and it has garnered minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:digigram:pyko-out:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.55%
Probability of exploitation in next 30 days
EPSS Percentile
42.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0055 is in the 23rd percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

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