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CVE-2023-4693

Low

No strong exploitation signal.

CVSS base
5.3 MEDIUM
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N
EPSS — probability of exploitation (30 days)
0.5%
41.5th percentile
CISA KEV
Not listed
Weakness / dates
CWE-125
Published 2023-10-25 · modified 2026-07-21

CVSS breakdown

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N

Attack VectorLLocal
Attack ComplexityHHigh
Privileges RequiredHHigh
User InteractionNNone
ScopeCChanged
ConfidentialityHHigh
IntegrityNNone
AvailabilityNNone

Timeline

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.

Affected

gnu redhat

References

Official: NVD · CVE.org