7.8

CVE-2023-31096

Medienbericht
Exploit
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Broadcom ≫ Lsi Pci-sv92ex Firmware Version <= 2.2.100.1
   Broadcom ≫ Lsi Pci-sv92ex Version-
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.45% 0.358
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

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VulnDex Intel
Media Report
14.01.2026 09:40
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VulnDex Intel
Media Report
14.01.2026 07:55
https://www.broadcom.com
Not Applicable
https://cschwarz1.github.io/posts/0x04/
Third Party Advisory
Exploit