CVE-2026-121390

MEDIUM 4.3

FreeRDP before 3.32.2 Null Pointer Crash via ARM Gateway Response

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

FreeRDP 3.0.0 before 3.32.2 built with WITH_AAD=ON contains a reachable assertion because its ARM gateway response parser accepts a missing or non-string redirectedServerCert field and passes a null buffer to the certificate parser. A malicious or malformed user-selected gateway can return such a response to abort the client process.

CWE	CWE-617
Vendor	freerdp
Product	freerdp
Published	Nov 3, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Affected Versions

FreeRDP / FreeRDP

3.0.0 < 3.32.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-hqf8-95c7-6r92 vulncheck.com: https://www.vulncheck.com/advisories/freerdp-before-3.32.2-null-pointer-crash-via-arm-gateway-response

Credits

opensec-intelligence Kushalkhemka mayank-jangid-moon