CVE-2026-2167Public exploitNetwork attack vector

Root command execution via unfiltered Ipaddr parameter

Published Feb 8, 2026 · Updated Feb 8, 2026

OS command injection in TOTOLINK WA300 5.2cu.7112_B20190227 allows remote authenticated users to execute commands with root privileges. setAPNetwork in /cgi-bin/cstecgi.cgi reads Ipaddr through websGetVar and directly concatenates the unfiltered value into a system command. Low-privilege access to the web management endpoint is required, after which injected shell characters can read, alter, or disrupt the device.

CVSS severity8.8
High
EPSS probability2.36%
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 TOTOLINK WA300 5.2cu.7112_B20190227 allows remote authenticated users to execute commands with root privileges. setAPNetwork in /cgi-bin/cstecgi.cgi reads Ipaddr through websGetVar and directly concatenates the unfiltered value into a system command. Low-privilege access to the web management endpoint is required, after which injected shell characters can read, alter, or disrupt the device.

The record

CVE
CVE-2026-2167
Published
Feb 8, 2026
Updated
Feb 8, 2026
Vendor
TOTOLINK
Product
WA300
Classifications
CWE-77, CWE-78, T1190, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 8, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.2cu.7112_B20190227

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

TOTOLINK · WA300version=5.2cu.7112_B20190227

Published CVSS scores

6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1190Exploit Public-Facing Application
T1059.004Command and Scripting Interpreter: Unix Shell

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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