4.3

CVE-2020-11997: apache guacamole Incorrect Default Permissions

CVSS: 4.3v3.1MediumModified
AliasesUBUNTU-CVE-2020-11997
Published 19-01-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-11997 is a medium (CVSS 4.3) Incorrect Default Permissions vulnerability in apache guacamole. EPSS estimates a 1.26% chance of exploitation in the next 30 days, higher than 69.1% of scored vulnerabilities.

Overall risk
17/100
0100
Low · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v3.1 (NVD)
EPSS score
1.26%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
MGASA-2021-0272

Timeline

  1. 19-01-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Apache Guacamole 1.2.0 and earlier do not consistently restrict access to connection history based on user visibility. If multiple users share access to the same connection, those users may be able to see which other users have accessed that connection, as well as the IP addresses from which that connection was accessed, even if those users do not otherwise have permission to see other users.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.26%

Chance of exploitation in the next 30 days

Percentile

69%

Versus all other CVEs

30-day change

+0.02 pp

From 1.24% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.26%

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
Ubuntu1 product
  • guacamole-serverAll versions (No fix recorded)

2 vendors · 2 products

References

3 links