SB2026021009 - Multiple vulnerabilities in FreeRDP

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Main Vulnerability Database SB2026021009

SB2026021009 - Multiple vulnerabilities in FreeRDP

Published: February 10, 2026

Security Bulletin ID SB2026021009
Severity
High
Patch available
YES
Number of vulnerabilities 9
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 67% Low 33%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 9 secuirty vulnerabilities.


1) Out-of-bounds write (CVE-ID: CVE-2026-22852)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input within the audin_process_formats() function. A remote attacker can trick the victim into connecting to a malicious server, trigger an out-of-bounds write and execute arbitrary code on the target system.

2) Out-of-bounds write (CVE-ID: CVE-2026-22853)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input within the ndr_read_uint8Array() function. A remote attacker can trick the victim into connecting to a malicious server, trigger an out-of-bounds write and execute arbitrary code on the target system.


3) Out-of-bounds read (CVE-ID: CVE-2026-22859)

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary condition within the urb_select_configuration() function. A remote attacker can trick the victim into connecting to a malicious server, trigger an out-of-bounds read error and crash the application.

4) Out-of-bounds read (CVE-ID: CVE-2026-22858)

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary condition within the crypto_base64_decode() function. A remote attacker can trick the victim into connecting to a malicious server, trigger an out-of-bounds read error and crash the application.


5) Use-after-free (CVE-ID: CVE-2026-22857)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in irp_thread_func() function. A remote attacker can trick the victim into connecting to a malicious server and execute arbitrary code on the system.


6) Use-after-free (CVE-ID: CVE-2026-22856)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in create_irp_thread() function. A remote attacker can trick the victim into connecting to a malicious server and execute arbitrary code on the system.


7) Heap-based buffer overflow (CVE-ID: CVE-2026-22855)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in smartcard_unpack_set_attrib_call() function. A remote attacker can trick the victim into connecting to a malicious server, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

8) Heap-based buffer overflow (CVE-ID: CVE-2026-22854)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in drive_process_irp_read() function. A remote attacker can trick the victim into connecting to a malicious server, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

9) Use-after-free (CVE-ID: CVE-2026-22851)

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a use-after-free error in SDL client (sdl->primary) caused by a race in RDPGFX ResetGraphics. A remote attacker can trick the victim into connecting to a malicious server and crash the application.

Note, the vulnerability affects SDL client only. 


Remediation

Install update from vendor's website.

References