CVE-2025-70161Public exploitNetwork attack vector

Unauthenticated command execution via PPPoE username

Published Jan 9, 2026 · Updated Jan 9, 2026

OS command injection in EDIMAX BR-6208AC V2 firmware 1.02 and 1.03 allows remote attackers to execute arbitrary commands via PPPoE settings. The setWAN handler inserts the pppUserName value into an echo command with sprintf and passes the resulting string to system() without neutralizing shell metacharacters. A crafted POST request to the web-based WAN configuration handler is sufficient, and the resulting commands run with elevated privileges.

CVSS severity9.8
Critical
EPSS probability27.06%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in EDIMAX BR-6208AC V2 firmware 1.02 and 1.03 allows remote attackers to execute arbitrary commands via PPPoE settings. The setWAN handler inserts the pppUserName value into an echo command with sprintf and passes the resulting string to system() without neutralizing shell metacharacters. A crafted POST request to the web-based WAN configuration handler is sufficient, and the resulting commands run with elevated privileges.

The record

CVE
CVE-2025-70161
Published
Jan 9, 2026
Updated
Jan 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-77, T1059.004, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 9, 2026Record 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 privilegesunauthenticated

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059.004Command and Scripting Interpreter: Unix Shell
T1190Exploit Public-Facing Application

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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