CVE-2025-49688 - Double Free

Severity

88%

Complexity

27%

Confidentiality

98%

Double free in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.

CVSS 3.1 Base Score 8.8. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

Demo Examples

Double Free

CWE-415

Double Free

CWE-415

While contrived, this code should be exploitable on Linux distributions which do not ship with heap-chunk check summing turned on.


               
}
free(buf1R2);

Overview

Type

Microsoft Windows Server

First reported 2 weeks ago

2025-07-08 17:15:00

Last updated 1 week ago

2025-07-15 17:32:00

Affected Software

Microsoft Windows Server 2016

Microsoft Windows Server 2019

References

Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability

Vendor Advisory

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