// For flags

CVE-2024-35164

Apache Guacamole: Improper input validation of console codes

Severity Score

6.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

The terminal emulator of Apache Guacamole 1.5.5 and older does not properly validate console codes received from servers via text-based protocols like SSH. If a malicious user has access to a text-based connection, a specially-crafted sequence of console codes could allow arbitrary code to be executed
with the privileges of the running guacd process. Users are recommended to upgrade to version 1.6.0, which fixes this issue.

The terminal emulator of Apache Guacamole 1.5.5 and older does not properly validate console codes received from servers via text-based protocols like SSH. If a malicious user has access to a text-based connection, a specially-crafted sequence of console codes could allow arbitrary code to be executed with the privileges of the running guacd process. Users are recommended to upgrade to version 1.6.0, which fixes this issue.

*Credits: Tizian Seehaus (Tibotix)
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
High
Authentication
Single
Confidentiality
Complete
Integrity
Complete
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
None
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2024-05-10 CVE Reserved
  • 2025-07-02 CVE Published
  • 2025-07-03 CVE Updated
  • 2025-07-10 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-129: Improper Validation of Array Index
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
URL Date SRC
https://lists.apache.org/thread/sgs8lplbkrpvd3hrvcnnxh3028h4py70 2025-07-02
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Apache Software Foundation
Search vendor "Apache Software Foundation"
 Apache Guacamole
Search vendor "Apache Software Foundation" for product "Apache Guacamole"
 >= 0.8.0 <= 1.5.5
Search vendor "Apache Software Foundation" for product "Apache Guacamole" and version " >= 0.8.0 <= 1.5.5"
en
Affected