CVE-2023-30053Public exploitNetwork attack vector

Unauthenticated command execution via iptvVer parameter

Published May 5, 2023 · Updated Jan 29, 2025

OS command injection in TOTOLINK A7100RU firmware 7.4cu.2313_B20191024 allows remote attackers to execute commands via a crafted HTTP request. The setSmartQosCfg handler passes the untrusted iptvVer parameter through Uci_Set_Str and snprintf into cstesystem, which invokes execv without neutralizing shell metacharacters. The request requires no privileges or user interaction, and successful exploitation provides arbitrary command execution with root-shell impact.

CVSS severity9.8
Critical
EPSS probability2.06%
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 TOTOLINK A7100RU firmware 7.4cu.2313_B20191024 allows remote attackers to execute commands via a crafted HTTP request. The setSmartQosCfg handler passes the untrusted iptvVer parameter through Uci_Set_Str and snprintf into cstesystem, which invokes execv without neutralizing shell metacharacters. The request requires no privileges or user interaction, and successful exploitation provides arbitrary command execution with root-shell impact.

The record

CVE
CVE-2023-30053
Published
May 5, 2023
Updated
Jan 29, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 29, 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.

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-78Improper Neutralization of Special Elements used in an OS Command ('OS 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

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Your stack

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