What is RHSA-2026:4121?

RHSA-2026:4121 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: freerdp security update

Which CVE IDs does RHSA-2026:4121 cover?

RHSA-2026:4121 covers the following CVE IDs: CVE-2026-22853, CVE-2026-22855, CVE-2026-22858, CVE-2026-22859, CVE-2026-24678. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:4121?

RHSA-2026:4121 has a CVSS v3 base score of 8.1, published by Red Hat Product Security.

RHSA-2026:4121HighCVSS 8.1

Red Hat Security Advisory: freerdp security update

Vendor

Red Hat Product Security

Published

March 9, 2026

Last Modified

June 8, 2026

🔗 CVE IDs covered (5)

CVE-2026-22853 →CVE-2026-22855 →CVE-2026-22858 →CVE-2026-22859 →CVE-2026-24678 →

📋 Description

CVE-2026-22853 — freerdp: FreeRDP heap-buffer-overflow CVE-2026-22855 — freerdp: FreeRDP heap-buffer-overflow CVE-2026-22858 — freerdp: FreeRDP global-buffer-overflow CVE-2026-22859 — freerdp: FreeRDP heap-buffer-overflow CVE-2026-24678 — freerdp: FreeRDP: Denial of Service via use after free in ecam_channel_write

🔗 References (8)

selfhttps://access.redhat.com/errata/RHSA-2026:4121
externalhttps://access.redhat.com/security/updates/classification/#important
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2429645
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2429647
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2429649
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2429653
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2438197
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_4121.json