CVE-2025-22939Public exploitNetwork attack vector

Root command execution via telnet ping injection

Published Mar 31, 2025 · Updated Aug 18, 2025

Command injection in the telnet service of Adtran 411 ONT L80.00.0011.M2 allows remote authenticated users to execute commands as root. The restricted CLI passes the ping command argument without neutralizing semicolons, allowing appended shell commands to run with root privileges. Access requires a network path to port 23 and a valid telnet login; successful injection provides control of the embedded Linux system.

CVSS severity9.8
Critical
EPSS probability2.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in the telnet service of Adtran 411 ONT L80.00.0011.M2 allows remote authenticated users to execute commands as root. The restricted CLI passes the ping command argument without neutralizing semicolons, allowing appended shell commands to run with root privileges. Access requires a network path to port 23 and a valid telnet login; successful injection provides control of the embedded Linux system.

The record

CVE
CVE-2025-22939
Published
Mar 31, 2025
Updated
Aug 18, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-77, T1068, T1059.008
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 18, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1068Exploitation for Privilege Escalation
T1059.008Command and Scripting Interpreter: Network Device CLI

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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