Detections
Analytics
CVE-2023-31096
high
Description
An issue was discovered in Broadcom) LSI PCI-SV92EX Soft Modem Kernel Driver through 2.2.100.1 (aka AGRSM64.sys). There is Local Privilege Escalation to SYSTEM via a Stack Overflow in RTLCopyMemory (IOCTL 0x1b2150). An attacker can exploit this to elevate privileges from a medium-integrity process to SYSTEM. This can also be used to bypass kernel-level protections such as AV or PPL, because exploit code runs with high-integrity privileges and can be used in coordinated BYOVD (bring your own vulnerable driver) ransomware campaigns.
References
https://www.theregister.com/2026/01/14/patch_tuesday_january_2026/
https://www.infosecurity-magazine.com/news/microsoft-three-zerodays-busy/
https://thehackernews.com/2026/01/microsoft-fixes-114-windows-flaws-in.html
https://www.securityweek.com/microsoft-patches-exploited-windows-zero-day-111-other-vulnerabilities/