CVE-2023-6612Public exploit

Authenticated command execution via unsanitized configuration values

Published Dec 8, 2023 · Updated Oct 9, 2024

OS command injection in TOTOLINK X5000R 9.1.0cu.2300_B20230112 allows remote authenticated users to execute arbitrary commands. A cstecgi.cgi handler passes an untrusted configuration value through Uci_Set_Str into a formatted uci command that CsteSystem ultimately runs via execv. Exploitation requires adjacent-network access and low-privileged authentication; executed commands can read, alter, or interrupt router operations.

CVSS severity9.8
Critical
EPSS probability30.68%
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 X5000R 9.1.0cu.2300_B20230112 allows remote authenticated users to execute arbitrary commands. A cstecgi.cgi handler passes an untrusted configuration value through Uci_Set_Str into a formatted uci command that CsteSystem ultimately runs via execv. Exploitation requires adjacent-network access and low-privileged authentication; executed commands can read, alter, or interrupt router operations.

The record

CVE
CVE-2023-6612
Published
Dec 8, 2023
Updated
Oct 9, 2024
Vendor
TOTOLINK
Product
X5000R
Classifications
CWE-78, T1059
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 9, 2024Record 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=9.1.0cu.2300_B20230112

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

TOTOLINK · X5000Rversion=9.1.0cu.2300_B20230112
TOTOLINK · TOTOLINK X5000R Firmwareversion=9.1.0cu.2300_b20230112

Published CVSS scores

5.2VulDBAV:A/AC:L/Au:S/C:P/I:P/A:P
5.5VulDBCVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
5.5VulDBCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
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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