CVE-2024-34257Public exploitNetwork attack vector

Unauthenticated command execution via apcliEncrypType injection

Published May 8, 2024 · Updated Aug 2, 2024

Command injection in TOTOLINK EX1800T firmware 9.1.0cu.2112_B20220316 allows remote attackers to execute commands without authentication. The setWiFiExtenderConfig handler in cstecgi.cgi formats apcliEncrypType into a value passed to CsteSystem without neutralizing shell syntax. A network-reachable management interface accepts an empty token, and successful exploitation runs commands with device-administrator privileges.

CVSS severity9.8
Critical
EPSS probability3.82%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in TOTOLINK EX1800T firmware 9.1.0cu.2112_B20220316 allows remote attackers to execute commands without authentication. The setWiFiExtenderConfig handler in cstecgi.cgi formats apcliEncrypType into a value passed to CsteSystem without neutralizing shell syntax. A network-reachable management interface accepts an empty token, and successful exploitation runs commands with device-administrator privileges.

The record

CVE
CVE-2024-34257
Published
May 8, 2024
Updated
Aug 2, 2024
Vendor
TOTOLINK
Product
TOTOLINK EX1800T Firmware
Classifications
CWE-285, T1190, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 8, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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.2112_b20220316

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TOTOLINK · TOTOLINK EX1800T Firmwareversion=9.1.0cu.2112_b20220316

Published CVSS scores

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.

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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-285Improper Authorization
T1190Exploit Public-Facing Application
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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