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CVE-2026-91956

Опубликовано: 15 сент. 2026
Источник: redhat
CVSS3: 6.5
EPSS Низкий

Описание

FreeRDP before 3.31.0 contains an out-of-bounds read vulnerability in the URBDRC channel's func_get_ep_desc function that indexes interface arrays by position instead of protocol field InterfaceNumber. A malicious RDP server can send a crafted SELECT_CONFIGURATION message with permuted InterfaceNumber values to read past allocated heap memory and crash the client.

A flaw was found in FreeRDP. A malicious Remote Desktop Protocol (RDP) server can exploit an out-of-bounds read vulnerability in the URBDRC (USB device redirection) channel. By sending a specially crafted message, the server can cause the FreeRDP client to read beyond its allocated memory, leading to a client crash and a denial of service.

Меры по смягчению последствий

To mitigate this issue, users should avoid connecting to untrusted or unverified RDP servers. Restricting FreeRDP client connections to known, trusted RDP servers can prevent exploitation of this vulnerability.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10freerdpAffected
Red Hat Enterprise Linux 6freerdpOut of support scope
Red Hat Enterprise Linux 7freerdpAffected
Red Hat Enterprise Linux 8freerdpAffected
Red Hat Enterprise Linux 9freerdpAffected

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-125
https://bugzilla.redhat.com/show_bug.cgi?id=2533927FreeRDP: FreeRDP: Denial of Service via out-of-bounds read in URBDRC channel

EPSS

Процентиль: 28%
0.00346
Низкий

6.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 6.5
ubuntu
4 дня назад

[GHSA-hg4r-vv53-vwf8: URBDRC out-of-bounds read in func_get_ep_desc via InterfaceNumber/array-position index mismatch]

CVSS3: 6.5
nvd
4 дня назад

FreeRDP before 3.31.0 contains an out-of-bounds read vulnerability in the URBDRC channel's func_get_ep_desc function that indexes interface arrays by position instead of protocol field InterfaceNumber. A malicious RDP server can send a crafted SELECT_CONFIGURATION message with permuted InterfaceNumber values to read past allocated heap memory and crash the client.

CVSS3: 6.5
debian
4 дня назад

FreeRDP before 3.31.0 contains an out-of-bounds read vulnerability in ...

CVSS3: 6.5
github
4 дня назад

FreeRDP before 3.31.0 contains an out-of-bounds read vulnerability in the URBDRC channel's func_get_ep_desc function that indexes interface arrays by position instead of protocol field InterfaceNumber. A malicious RDP server can send a crafted SELECT_CONFIGURATION message with permuted InterfaceNumber values to read past allocated heap memory and crash the client.

EPSS

Процентиль: 28%
0.00346
Низкий

6.5 Medium

CVSS3