CVE-2026-111880 FreeRDP - Out of Bounds Read/Write

FreeRDP >= 2.0.0 < 3.32.0 contains a heap out-of-bounds write caused by improper validation of MIC offset in server hash-callback NTLM path, letting unauthenticated attackers write beyond allocation via crafted AUTHENTICATE_MESSAGE.

CVSS base score 7.4 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.32% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Out-of-bounds Read/Write
Impact
Denial of Service
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Published
17 October 2026
Updated
19 October 2026
Weakness
CWE-787

Vendor fix

Update to version 3.32.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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