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CVE record · CVE-2023-4693

Grub2: out-of-bounds read at fs/ntfs.c

CVSS 5.3 MediumEPSS 0.0049 · 42nd percentile

Published by the CVE Program (CNA: redhat) at 25 Oct 2023, 10:27 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Red Hat Red Hat Enterprise Linux 8 Package name: grub2 https://access.redhat.com/downloads/content/package-browser/
  • unaffected 1:2.02-156.el8 to before * rpm
Other versions: affected
Red Hat Red Hat Enterprise Linux 9 Package name: grub2 https://access.redhat.com/downloads/content/package-browser/
  • unaffected 1:2.06-77.el9 to before * rpm
Other versions: affected
Red Hat Red Hat Enterprise Linux 7 Package name: grub2 https://access.redhat.com/downloads/content/package-browser/ No versions given Other versions: affected
Identifiers
CVE-2023-4693
CNA
redhat
Weakness (CWE)
CWE-125
Tags
Published
25 Oct 2023
Updated
7 Nov 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
5.3 Medium 3.1 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N CNA (redhat)
  • CISA KEV Not listed.
  • EPSS 0.0049, the 42nd percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 25 Oct 2023, 10:27 UTC Confirmed by the CVE List
  2. 25 Oct 2023, 18:17 UTC Confirmed by NVD

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.