High severity · published Jan 16, 2024
CVE-2023-45234
EDK2's Network Package is susceptible to a buffer overflow vulnerability when processing DNS Servers option from a DHCPv6 Advertise message
8.8
CVSS
1.2%
EPSS
No
On KEV
Description
EDK2's Network Package is susceptible to a buffer overflow vulnerability when processing DNS Servers option from a DHCPv6 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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ED
Edk2 · Tianocore
through 202311 · source: NVD
In the news
VulnerabilityCritical
ABB B&R PCs
View CSAF
Summary
ABB became aware of vulnerability in the product versions listed as affected in the advisory. An update is now available that addresses and remediates the vulnerability. A network attacker could exploit the vulnerabilities to execute remote code, initiate DoS attacks, conduct DNS cache poisoning, or extract sensitive information.
The following versions of ABB B&R PCs are affected:
APC4100 <1.09, 1.09 (CVE-2023-45229, CVE-2023-45230, CVE-2023-45231, CVE-2023-45232, CVE-2023-45233, CVE-2023-45234, CVE-2023-45235, CVE-2023-45236, CVE-2023-45237)
APC910 <=1.25 (CVE-2023-45229, CVE-2023-45230, CVE-2023-45231, CVE-2023-45232, CVE-2023-45233, CVE-2023-45234, CVE-2023-45235, CVE-2023-45236, CVE-2023-45237)
C80 <1.14, 1.14 (CVE-2023-45229, CVE-2023-45230, CVE-2023-45231, CVE-2023-45232, CVE-2023-45233, CVE-2023-45234, CVE-2023-45235, CVE-2023-45236, CVE-2023-45237)
MPC3100 <1.24, 1.24 (CVE-2023-45229, CVE-2023-45230, CVE-2023-45231, CVE-2023-45232, CVE-2023-45233, CVE-2023-45234, CVE-2023-45235, CVE-2023-45236, CVE-2023-45237)
PPC1200 <1.14, 1.14 (CVE-2023-45229, CVE-2023-45230, CVE-2023-45231, CVE-2023-45232, CVE-2023-45233, CVE-2023-45234, CVE-2023-45235, CVE-2023-45236, CVE-2023-45237)
PPC900 <2.16, 2.16 (CVE-2023-45229, CVE-2023-45230, CVE-2023-45231, CVE-2023-45232, CVE-2023-45233, CVE-2023-45234, CVE-2023-45235, CVE-2023-45236, CVE-2023-45237)
APC2200 <1.35, 1.35 (CVE-2023-45229, CVE-2023-45230, CVE-2023-45231,...
May 21, 2026·CISA Advisories
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-45234
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-45234
Third Party Advisory
http://packetstormsecurity.com/files/176574/PixieFail-Proof-Of-Concepts.html
Mailing List
http://www.openwall.com/lists/oss-security/2024/01/16/2
Vendor Advisory
https://github.com/tianocore/edk2/security/advisories/GHSA-hc6x-cw6p-gj7h
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SJ42V7O7F4OU6R7QSQQECLB6LDHKZIMQ/
security.netapp.com
https://security.netapp.com/advisory/ntap-20240307-0011/
lists.debian.org
https://lists.debian.org/debian-lts-announce/2025/06/msg00007.html
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