CVE-2023-4693
4.6
MEDIUM
CVSS 3.1
EPSS 0.01%
Description
An out-of-bounds read flaw was found on grub2's NTFS filesystem driver. This issue may allow a physically present attacker to present a specially crafted NTFS file system image to read arbitrary memory locations. A successful attack allows sensitive data cached in memory or EFI variable values to be leaked, presenting a high Confidentiality risk.
How to fix CVE-2023-4693
To remediate CVE-2023-4693, upgrade the affected package to a fixed version below.
- —upgrade to 2.06-3~deb11u6 or later
Is CVE-2023-4693 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.06-3~deb11u6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.6 | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |