CVE-2025-22940

Name: CVE-2025-22940
Creator: NVD / NIST
Published: 2025-03-31T15:15:43.763+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 0.40%

Last modified Jun 17, 2026

CVE-2025-22940 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. Incorrect access control in Adtran 411 ONT L80.00.0011.M2 allows unauthorized attackers to arbitrarily set the admin password.. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

Description

Incorrect access control in Adtran 411 ONT L80.00.0011.M2 allows unauthorized attackers to arbitrarily set the admin password.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

0.40%

32.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-284

Affected Software

Vendor	Product	Versions
Adtran	411 Firmware	l80.00.0011.m2

References

https://drive.google.com/file/d/1levaZk5aC6g6a2zPW8xlOIVAu9MFYvAz/viewExploit, Third Party Advisory
https://lanrat.com/posts/adtran-isp-hacking/
https://drive.google.com/file/d/1levaZk5aC6g6a2zPW8xlOIVAu9MFYvAz/viewExploit, Third Party Advisory

Timeline

Published: Mar 31, 2025
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2025-22940?

Incorrect access control in Adtran 411 ONT L80.00.0011.M2 allows unauthorized attackers to arbitrarily set the admin password.

How severe is CVE-2025-22940?

CVE-2025-22940 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.

How do I fix CVE-2025-22940?

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-2025-22940?

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

Scan your code now

Source: NVD / NIST