AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2023-4692

HIGH · CVSS 7.5 EPSS 0.54% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-10-25 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
arbitrary code execution code execution

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2023-4692
Severity
HIGH
CVSS
7.5
EPSS
0.54%

Original NVD Description

An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub's heap metadata corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a result, arbitrary code execution and secure boot protection bypass may be achieved.

Related CVEs

Other vulnerabilities affecting the same vendor(s)