CVE-2026-5352Public exploitNetwork attack vector

Authenticated command execution via unsanitized pcdb_list parameter

Published Apr 2, 2026 · Updated Apr 2, 2026

OS command injection in TRENDnet TEW-657BRM 1.00.1 allows remote authenticated users to execute commands through setup.cgi. The Edit function passes the request's pcdb_list value to SYSTEM without validation, so shell metacharacters alter the executed command. Access to the web management interface and valid credentials are required; successful exploitation runs attacker-selected commands on the router.

CVSS severity6.3
Medium
EPSS probability4.53%
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 TRENDnet TEW-657BRM 1.00.1 allows remote authenticated users to execute commands through setup.cgi. The Edit function passes the request's pcdb_list value to SYSTEM without validation, so shell metacharacters alter the executed command. Access to the web management interface and valid credentials are required; successful exploitation runs attacker-selected commands on the router.

The record

CVE
CVE-2026-5352
Published
Apr 2, 2026
Updated
Apr 2, 2026
Vendor
TRENDnet
Product
TEW-657BRM
Classifications
CWE-78, CWE-77, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 2, 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=1.00.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

TRENDnet · TEW-657BRMversion=1.00.1

Published CVSS scores

6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
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
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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.

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-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
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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