SB2025040862 - Multiple vulnerabilities in Microsoft Windows Routing and Remote Access Service (RRAS)

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Main Vulnerability Database SB2025040862

SB2025040862 - Multiple vulnerabilities in Microsoft Windows Routing and Remote Access Service (RRAS)

Published: April 8, 2025

Security Bulletin ID SB2025040862
CSH Severity
High
Patch available
YES
Number of vulnerabilities 8
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 13% Medium 88%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 8 vulnerabilities.


1) Heap-based buffer overflow (CVE-ID: CVE-2025-26668)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


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

The vulnerability exists due to a boundary error. A remote attacker can pass specially crafted data to the application in Windows Routing and Remote Access Service (RRAS), trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


2) Use of uninitialized resource (CVE-ID: CVE-2025-27474)

CWE-ID: CWE-908 - Use of Uninitialized Resource

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to usage of uninitialized resources in Windows Routing and Remote Access Service (RRAS). A remote attacker can trick a victim to connect to a malicious server and gain access to sensitive information.


3) Information disclosure (CVE-ID: CVE-2025-26667)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in Windows Routing and Remote Access Service (RRAS). A remote attacker can trick a victim to connect to a malicious server and gain unauthorized access to sensitive information on the system.


4) Out-of-bounds read (CVE-ID: CVE-2025-26672)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in Windows Routing and Remote Access Service (RRAS). A remote attacker can trigger an out-of-bounds read error and read contents of memory on the system.


5) Out-of-bounds read (CVE-ID: CVE-2025-21203)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in Windows Routing and Remote Access Service (RRAS). A remote attacker can trick a victim to connect to a malicious server, trigger an out-of-bounds read error and read contents of memory on the system.


6) Out-of-bounds read (CVE-ID: CVE-2025-26664)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in Windows Routing and Remote Access Service (RRAS). A remote attacker can trick a victim to connect to a malicious server, trigger an out-of-bounds read error and read contents of memory on the system.


7) Out-of-bounds read (CVE-ID: CVE-2025-26669)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in Windows Routing and Remote Access Service (RRAS). A remote attacker can trick a victim to send a request to a malicious server, trigger an out-of-bounds read error and read contents of memory on the system.


8) Out-of-bounds read (CVE-ID: CVE-2025-26676)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in Windows Routing and Remote Access Service (RRAS). A remote attacker can trick a victim to connect to a malicious server, trigger an out-of-bounds read error and read contents of memory on the system.


Remediation

Install update from vendor's website.

References