CVE-2023-43826
8.8
HIGH
CVSS 3.1
EPSS 0.89%
Description
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.
How to fix CVE-2023-43826
To remediate CVE-2023-43826, upgrade the affected package to a fixed version below.
- —upgrade to 1.5.3 or later
- —upgrade to 1.5.3 or later
Is CVE-2023-43826 being exploited?
Low — EPSS is 0.9%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.5.3
- from 0, < 1.5.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |