CVE-2026-22859

CRITICAL

CVSS v3.1: 9.1 · EPSS: 0.0047 (37.3 percentile)

NetworkNo privilegesNo user interactionOut-of-bounds ReadVendor advisory ref

Source data as of:

At a glance

Severity
CRITICAL
CVSS
9.1 v3.1 · NVD
EPSS
0.0047 (37.3 percentile) · FIRST.org
CISA KEV
No
Type
Out-of-bounds Read · NVD CWE
Attack conditions (CVSS vector)
NetworkNo privilegesNo user interaction · Source: NVD Vector
Affected vendors
freerdp
Published
2026-01-14 · Modified: 2026-06-30
References
Jump to references (8)

CVSS / EPSS / KEV

CVSS v3.1 9.1 / 10 CRITICAL Source: NVD
CVSS v4.0 5.6 / 10 MEDIUM Source: NVD
EPSS 0.0047 37.3 percentile Source: FIRST.org
CISA KEV No Source: CISA

Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, the URBDRC client does not perform bounds checking on server‑supplied MSUSB_INTERFACE_DESCRIPTOR values and uses them as indices in libusb_udev_complete_msconfig_setup, causing an out‑of‑bounds read. This vulnerability is fixed in 3.20.1.

Record details

CVE ID
CVE-2026-22859
CVSS (v3.1)
9.1 (CRITICAL)
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Exploitability subscore
3.9
Impact subscore
5.2
EPSS
0.0047 (37.3 percentile) — 2026-06-30
CISA KEV
No
Weakness (CWE)
CWE-125, CWE-129
Affected vendors
freerdp
Affected configurations (CPE)
1
Published
2026-01-14
Modified
2026-06-30
Status
Modified

References

Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.

Related records

Other records sharing a factual facet, for cross-reference. A descriptive neighbourhood — ordering does not imply priority and is not a recommendation.

Same affected vendor

CVE-2026-22853 CRITICAL CVSS 9.8 CVE-2026-23530 CRITICAL CVSS 9.8 CVE-2026-23531 CRITICAL CVSS 9.8 CVE-2026-23532 CRITICAL CVSS 9.8

Same weakness type (CWE)

CVE-2026-2771 CRITICAL CVSS 9.8 CVE-2026-5735 CRITICAL CVSS 9.8 CVE-2025-49796 CRITICAL CVSS 9.1 CVE-2026-22855 CRITICAL CVSS 9.1

Published the same year

CVE-2026-0881 CRITICAL CVSS 10.0 CVE-2026-2760 CRITICAL CVSS 10.0 CVE-2026-2761 CRITICAL CVSS 10.0 CVE-2026-2768 CRITICAL CVSS 10.0
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