7.5

CVE-2024-35164: apache software foundation apache guacamole Improper Validation of Array Index

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2024-35164
Published 02-07-2025Last modified 26-02-2026
Open JSON

Vulnerability summary

CVE-2024-35164 is a high (CVSS 7.5) Improper Validation of Array Index vulnerability in apache software foundation apache guacamole. EPSS estimates a 0.52% chance of exploitation in the next 30 days, higher than 42.7% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
0.52%
0%100%
Low · +0.06 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 02-07-2025
    PublishedVulnerability first disclosed.
  2. 26-02-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.52%

Chance of exploitation in the next 30 days

Percentile

43%

Versus all other CVEs

30-day change

+0.06 pp

From 0.45% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.52%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apache1 product
Apache software foundation1 product
Ubuntu1 product
  • guacamole-clientAll versions (No fix recorded)

3 vendors · 3 products

References

4 links