What is CVE-2025-12779?

CVE-2025-12779 is a high-severity vulnerability in Amazon Workspaces, classified under Exposure of Sensitive System Information to an Unauthorized Control Sphere. CVSS score: 8.8/10. Published 2025-11-05.

How severe is CVE-2025-12779?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Amazon Workspaces

CVE-2025-12779

Improper handling of the authentication token in the Amazon WorkSpaces client for Linux, versions 2023.0 through 2024.8, may expose the authentication token for DCV-based WorkSpaces to other local users on the same client machine. Under ce…

EPSS: 0.002 (9.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Amazon Workspaces — versions 2025.0

Weakness classification (CWE)

CWE-497 — Exposure of Sensitive System Information to an Unauthorized Control Sphere

References

ff89ba41-3aa1-4d27-914a-91399e9639e5 (vendor-advisory)
ff89ba41-3aa1-4d27-914a-91399e9639e5 (release-notes, patch)

Frequently asked questions

What is CVE-2025-12779?: CVE-2025-12779 is a high-severity vulnerability in Amazon Workspaces, classified under Exposure of Sensitive System Information to an Unauthorized Control Sphere. CVSS score: 8.8/10. Published 2025-11-05.
How severe is CVE-2025-12779?: High severity. CVSS v3 base score is 8.8 out of 10.