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CVE-2024-35164

Apache Guacamole: Improper input validation of console codes

6.8 MediumFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
None

Exploit likelihood

0.53%Up 0.5 points since Jul 2, 2025
90%50%10%1%

What each source reports

CVE List Score used 6.8

Apache Guacamole: Improper input validation of console codes

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.

Record
CVE-2024-35164
CVSS 3.1
6.8 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness
CWE-129
Updated
2026-11-02
EUVDEUVD-2024-54722 6.8

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.

Record
EUVD-2024-54722
CVSS 3.1
6.8 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-8wh3-jcvc-qrmq 6.8

The terminal emulator of Apache Guacamole 1.5.5 and older does not properly validate console...

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.

Record
GHSA-8wh3-jcvc-qrmq
CVSS 3.1
6.8 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness
CWE-129
Updated
2026-11-02
NVD 6.8

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.

Record
CVE-2024-35164
CVSS 3.1
6.8 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-129
Updated
2026-11-02
OSVALPINE-CVE-2024-35164 7.5

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.

Record
ALPINE-CVE-2024-35164
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-03
OSV 6.8

Apache Guacamole: Improper input validation of console codes

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.

Record
CVE-2024-35164
CVSS 3.1
6.8 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness
CWE-129
Updated
2026-11-02
OSVUBUNTU-CVE-2024-35164 6.8

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.

Record
UBUNTU-CVE-2024-35164
CVSS 3.1
6.8 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
guacamole-server
Alpine:v3.23
 before 1.6.0-r0
1.6.0-r0
guacamole-server
Alpine:v3.24
 before 1.6.0-r0
1.6.0-r0
guacamole-client
Ubuntu:16.04:LTS
 All versions, plus listed versions
0.8.3-1.10.8.3-1.2
 None known
guacamole-client
Ubuntu:18.04:LTS
 All versions, plus listed versions
0.9.9+dfsg-1
 None known

History

History
RecordedChangedSources
affected, aliases, facts, referencesOSV
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-35164 is a medium vulnerability (CVSS 6.8) in Apache Guacamole, published July 2, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.53%, the 45th percentile. Fixed in guacamole-server 1.6.0-r0.

References

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