SB2025021189 - Multiple vulnerabilities in Microsoft Internet Connection Sharing (ICS)
Published: February 11, 2025 Updated: March 10, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) Out-of-bounds read (CVE-ID: CVE-2025-21212)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in the Internet Connection Sharing (ICS). A remote attacker on the local network can send specially crafted packets, trigger an out-of-bounds read error and cause a denial of service condition on the system.
2) Out-of-bounds read (CVE-ID: CVE-2025-21216)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in the Internet Connection Sharing (ICS). A remote attacker on the local network can send specially crafted packets, trigger an out-of-bounds read error and cause a denial of service condition on the system.
3) Out-of-bounds read (CVE-ID: CVE-2025-21254)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in the Internet Connection Sharing (ICS). A remote attacker on the local network can send specially crafted packets, trigger an out-of-bounds read error and cause a denial of service condition on the system.
4) Resource exhaustion (CVE-ID: CVE-2025-21352)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources in the Internet Connection Sharing (ICS). A remote attacker on the local network can trigger resource exhaustion and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21212
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21216
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21254
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21352