Microsoft Security Response Center

**Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?** One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.

**Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?** One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.

**According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?** Successful exploitation of this vulnerability requires an attacker to win a race condition.

**According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?** Successful exploitation of this vulnerability requires an attacker to win a race condition.

**What kind of security feature could be bypassed by successfully exploiting this vulnerability?** An attacker who successfully exploited this vulnerability could bypass Secure Boot.

**What privileges could be gained by an attacker who successfully exploited this vulnerability?** An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Improper input validation in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.

Improper validation of specified type of input in Windows Authentication Methods allows an authorized attacker to elevate privileges locally.

Improper validation of specified type of input in Windows Authentication Methods allows an authorized attacker to elevate privileges locally.

**According to the CVSS metric, the attack vector is local (AV:L) and the privilege required is none (PR:L). What privileges could an attacker gain with successful exploitation?** A local user could take advantage of this vulnerability and perform elevation of privilege (EOP). By successfully exploiting this vulnerability, the attacker could elevate their privileges to obtain root level access on the virtual machine.