CVE-2023-30575

Name: CVE-2023-30575
Creator: NVD / NIST
Published: 2023-06-07T09:15:09.993+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.16%

Last modified Jun 17, 2026

CVE-2023-30575 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Apache Guacamole 1.5.1 and older may incorrectly calculate the lengths of instruction elements sent during the Guacamole protocol handshake, potentially allowing an attacker to inject Guacamole instructions during the handshake through specially-crafted data. . EPSS estimates a 1.16% chance of exploitation in the next 30 days.

Description

Apache Guacamole 1.5.1 and older may incorrectly calculate the lengths of instruction elements sent during the Guacamole protocol handshake, potentially allowing an attacker to inject Guacamole instructions during the handshake through specially-crafted data.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Probability

1.16%

63.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Apache	Guacamole	< 1.5.2

References

https://lists.apache.org/thread/tn63n2lon0h5p45oft834t1dqvvxownvMailing List, Third Party Advisory
https://lists.apache.org/thread/tn63n2lon0h5p45oft834t1dqvvxownvMailing List, Third Party Advisory

Timeline

Published: Jun 7, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-30575?

How severe is CVE-2023-30575?

CVE-2023-30575 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.16% probability of exploitation in the next 30 days.

How do I fix CVE-2023-30575?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-30575?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST