CVE-2023-37148Public exploitNetwork attack vector

Unauthenticated command injection via ussd parameter

Published Jul 7, 2023 · Updated Nov 14, 2024

Command injection in TOTOLINK LR350 firmware 9.3.5u.6369_b20220309 allows remote attackers to execute arbitrary commands via the ussd parameter. The setUssd function incorporates the supplied ussd value into a command string and passes it to the system shell without neutralizing command metacharacters. The endpoint is network reachable without authentication, so a remote attacker can run commands with the router's firmware privileges and affect confidentiality, integrity, and availability.

CVSS severity9.8
Critical
EPSS probability1.96%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Command injection in TOTOLINK LR350 firmware 9.3.5u.6369_b20220309 allows remote attackers to execute arbitrary commands via the ussd parameter. The setUssd function incorporates the supplied ussd value into a command string and passes it to the system shell without neutralizing command metacharacters. The endpoint is network reachable without authentication, so a remote attacker can run commands with the router's firmware privileges and affect confidentiality, integrity, and availability.

The record

CVE
CVE-2023-37148
Published
Jul 7, 2023
Updated
Nov 14, 2024
Vendor
TOTOLINK
Product
LR350
Classifications
CWE-77, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 14, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=v9.3.5u.6369_b20220309

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TOTOLINK · LR350version=v9.3.5u.6369_b20220309

Published CVSS scores

9.8NVDCVSS: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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo