CVE-2023-45235

Buffer Overflow in EDK II Network Package

Published Jan 16, 2024 CVSS 3.1 · 8.3 High EPSS 1.2% KEV · Not listed
Description
EDK2's Network Package is susceptible to a buffer overflow vulnerability when





handling Server ID option



from a DHCPv6 proxy Advertise message. This
vulnerability can be exploited by an attacker to gain unauthorized
access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4207-1 edk2 security update
Debian DSA Debian DSA DSA-5624-1 edk2 security update
EUVD EUVD EUVD-2023-49541 EDK2's Network Package is susceptible to a buffer overflow vulnerability when handling Server ID option from a DHCPv6 proxy Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.
Ubuntu USN Ubuntu USN USN-6638-1 EDK II vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description EDK2's Network Package is susceptible to a buffer overflow vulnerability when handling Server ID option from a DHCPv6 proxy Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability. EDK2's Network Package is susceptible to a buffer overflow vulnerability when handling Server ID option from a DHCPv6 proxy Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.
Type Values Removed Values Added
First Time appeared Redhat rhel Tus
CPEs cpe:/a:redhat:rhel_aus:8.4
cpe:/a:redhat:rhel_aus:8.6
cpe:/a:redhat:rhel_e4s:8.4
cpe:/a:redhat:rhel_e4s:8.6
cpe:/a:redhat:rhel_tus:8.4
cpe:/a:redhat:rhel_tus:8.6
Vendors & Products Redhat rhel Tus
Type Values Removed Values Added
First Time appeared Redhat rhel E4s
CPEs cpe:/a:redhat:rhel_e4s:9.0
Vendors & Products Redhat rhel E4s
Type Values Removed Values Added
First Time appeared Redhat rhel Aus
CPEs cpe:/a:redhat:rhel_aus:8.2
cpe:/a:redhat:rhel_eus:8.8
Vendors & Products Redhat rhel Aus
Weaknesses

Sources

Status
PUBLISHED
Assigner
TianoCore
Published
Updated
Nov 4, 2025, 6:17 PM
Reserved
Oct 5, 2023, 8:48 PM
Status
Modified
Published
Jan 16, 2024, 4:15 PM
Modified
Jun 17, 2026, 6:28 AM
Severity
Important
Public date
Jan 16, 2024, 12:00 AM