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CVE-2025-22939

26
FAUCET Score

CVE-2025-22939 is a critical command injection vulnerability affecting the telnet service of Adtran 411 ONT L80.00.0011.M2. This flaw allows unauthenticated attackers to remotely execute arbitrary commands and escalate privileges to root, posing a severe risk to affected devices. With a CVSS score of 9.8 (CRITICAL), the vulnerability is easily exploitable over the network with no user interaction required, leading to complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the high EPSS and FAUCET Risk Score indicate a significant potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
l80.00.0011.m2CPE matchmatch criteria
cpe:2.3:o:adtran:411_firmware:l80.00.0011.m2:*:*:*:*:*:*:*

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
2.50%
Probability of exploitation in next 30 days
EPSS Percentile
83.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0250 is in the 73rd percentile among its peer group of 36,862 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

drive.google.com / file/d/1levaZk5aC6g6a2zPW8xlOIVAu9MFYvAz/view
Third Party Advisory
lanrat.com / posts/adtran-isp-hacking
youtube.com / watch
Exploit