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

Main Vulnerability Database SB2025040862

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

Published: April 8, 2025

Security Bulletin ID SB2025040862

Severity

High

Patch available

YES

Number of vulnerabilities 8

Exploitation vector Remote access

Highest impact Code execution

Breakdown by Severity

Low
Medium
High
Critical

Description

This security bulletin contains information about 8 secuirty vulnerabilities.

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

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)

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)

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)

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)

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)

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)

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)

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