Out-of-bounds Write Affecting freerdp package, versions <3.22.0-r0


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.08% (25th percentile)

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  • Snyk IDSNYK-ALPINE323-FREERDP-15251098
  • published10 Feb 2026
  • disclosed14 Jan 2026

Introduced: 14 Jan 2026

CVE-2026-22853  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Alpine:3.23 freerdp to version 3.22.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream freerdp package and not the freerdp package as distributed by Alpine. See How to fix? for Alpine:3.23 relevant fixed versions and status.

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, RDPEAR’s NDR array reader does not perform bounds checking on the on‑wire element count and can write past the heap buffer allocated from hints, causing a heap buffer overflow in ndr_read_uint8Array. This vulnerability is fixed in 3.20.1.

CVSS Base Scores

version 3.1