CVE-2022-39320

Heap buffer overflow in urbdrc channel

MEDIUM
4.6
CVSS Score
Published: November 16, 2022 at 12:00 AM UTC
Updated: June 17, 2026 at 04:58 AM UTC
2 products affected across 2 vendorsFedoraFreeRDP

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Severity
MEDIUM4.6
Exploit prediction
EPSS 0.7%

Description

FreeRDP is a free remote desktop protocol library and clients. Affected versions of FreeRDP may attempt integer addition on too narrow types leads to allocation of a buffer too small holding the data written. A malicious server can trick a FreeRDP based client to read out of bound data and send it back to the server. This issue has been addressed in version 2.9.0 and all users are advised to upgrade. Users unable to upgrade should not use the `/usb` redirection switch.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.9.0
Affected range stops below 2.9.0, so it looks safe — our inference, not a vendor statement

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125

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