Integer overflow

2023-12-1920:15:00

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apache guacamole

integer overflow

security vulnerability

vnc server

memory corruption

code execution

guacd process

upgrade

nvd

7.6 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

55.7%

JSON

Apache Guacamole 1.5.3 and older do not consistently ensure that values received from a VNC server will not result in integer overflow. If a user connects to a malicious or compromised VNC server, specially-crafted data could result in memory corruption, possibly allowing arbitrary code to be executed with the privileges of the running guacd process.

Users are recommended to upgrade to version 1.5.4, which fixes this issue.