FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to version 1.11.0, FreeSWITCH's bundled XML parser expands nested <!ENTITY> declarations without a depth or count bound, so a small DTD can describe a body that expands exponentially ("billion laughs"). The PIDF body of a SIP PUBLISH is fed to this parser before any digest check, letting an unauthenticated network attacker force unbounded CPU and memory consumption with a single request. This issue has been patched in version 1.11.0.
Improper input validation in Microsoft Azure Attestation service and Device Health Attestation Service allows an authorized attacker to perform spoofing with a physical attack.
Access of resource using incompatible type ('type confusion') in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.
Exposure of sensitive information to an unauthorized actor in Windows Application Identity (AppID) Subsystem allows an authorized attacker to disclose information locally.