CVE-2024-35164Network attack vector

Authenticated code execution via unchecked console-code indexes

Published Jul 2, 2025 · Updated Feb 26, 2026

Improper array-index validation in Apache Guacamole 0.8.0 through 1.5.5 allows remote authenticated users to execute code via crafted console codes. The terminal emulator uses values derived from server-supplied console codes as array indexes without properly validating their bounds. Exploitation requires access to a text-based connection, such as SSH, and executes code with the privileges of the running guacd process.

CVSS severity6.8
Medium
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper array-index validation in Apache Guacamole 0.8.0 through 1.5.5 allows remote authenticated users to execute code via crafted console codes. The terminal emulator uses values derived from server-supplied console codes as array indexes without properly validating their bounds. Exploitation requires access to a text-based connection, such as SSH, and executes code with the privileges of the running guacd process.

The record

CVE
CVE-2024-35164
Published
Jul 2, 2025
Updated
Feb 26, 2026
Vendor
The Apache Software Foundation
Product
Apache Guacamole
Classifications
CWE-129, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 2, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 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=0.8.0 <=1.5.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache Guacamoleversion=0.8.0 <=1.5.5

Published CVSS scores

6.8Apache Software FoundationCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-129Improper Validation of Array Index
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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