CVE-2025-22940

CRITICAL
2025-03-31 [email protected]
9.1
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 28, 2026 - 18:34 vuln.today
PoC Detected
Aug 18, 2025 - 17:15 vuln.today
Public exploit code
CVE Published
Mar 31, 2025 - 15:15 nvd
CRITICAL 9.1

Tags

Authentication Bypass 411 Firmware

Description

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

Analysis

Incorrect access control in Adtran 411 ONT L80.00.0011.M2 allows unauthorized attackers to arbitrarily set the admin password. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical Context

This vulnerability is classified under CWE-284. Incorrect access control in Adtran 411 ONT L80.00.0011.M2 allows unauthorized attackers to arbitrarily set the admin password. Affected products include: Adtran 411 Firmware.

Affected Products

Adtran 411 Firmware.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Priority Score

66
Low Medium High Critical
KEV: 0
EPSS: +0.3
CVSS: +46
POC: +20

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CVE-2025-22940 vulnerability details – vuln.today
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