7.7

CVE-2025-0500: amazon appstream 2.0 client Improper Certificate Validation

CVSS: 7.7v4.0HighDeferred
Published 15-01-2025Last modified 14-10-2025
Open JSON

Vulnerability summary

CVE-2025-0500 is a high (CVSS 7.7) Improper Certificate Validation vulnerability in amazon appstream 2.0 client. EPSS estimates a 0.51% chance of exploitation in the next 30 days, higher than 42.4% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.7/10
010
High · v4.0 (CVE.org)
EPSS score
0.51%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 15-01-2025
    PublishedVulnerability first disclosed.
  2. 14-10-2025
    Last modifiedVulnerability information updated.

Description

An issue in the native clients for Amazon WorkSpaces (when running Amazon DCV protocol), Amazon AppStream 2.0, and Amazon DCV Clients may allow an attacker to access remote sessions via man-in-the-middle.

CVSS metrics

4 scores · 2 sources · 2 versions

EPSS trend

Probability

0.51%

Chance of exploitation in the next 30 days

Percentile

42%

Versus all other CVEs

30-day change

0.00 pp

From 0.51% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.51%

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

Amazon3 products

1 vendor · 3 products

References

6 links