CVE-2026-111880

Public on 2026-10-17

Modified on 2026-10-20

Description

FreeRDP versions from 2.0.0 before 3.32.0 contain a heap out-of-bounds write in the server hash-callback NTLM path that fails to validate the MIC offset. Unauthenticated attackers can send a crafted AUTHENTICATE_MESSAGE with a backward session-key offset and MIC offset to write 16 zero bytes beyond the allocation.

Severity

Medium

See what this means

CVSS v3 Base Score

6.5

See breakdown

Affected Packages

Platform	Package	Status
Amazon Linux 2 - Core	freerdp	Pending Fix
Amazon Linux 2023	freerdp	Pending Fix
Amazon Linux 2027 Preview	freerdp	Pending Fix

CVSS Scores

	Score Type	Score	Vector
Amazon Linux	CVSSv3	6.5	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2026-111880 Mitre: CVE-2026-111880