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CVE-2023-28450

Published: Mar 15, 2023Updated: Nov 3, 2025 Sources: CVE List NVD BDU csafNVD-CWE-noinfo
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.3%
Top 32.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

An issue was discovered in Dnsmasq before 2.90. The default maximum EDNS.0 UDP packet size was set to 4096 but should be 1232 because of DNS Flag Day 2020.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

NVD-CWE-noinfo

Affected Products

dnsmasqthekelleys
On-prem
Networking Infrastructure / dns-dhcp-ntp
n/an/a
UbuntuCanonical Ltd.
On-premOS
Operating Systems / linux-distro
SUSE Linux Enterprise Server for SAP ApplicationsNovell Inc.
On-premOS
Operating Systems / linux-distro
Suse Linux Enterprise ServerNovell Inc.
On-premOS
Operating Systems / linux-distro
thekelleysoss-projectNetworking Infrastructureaka dnsmasq, the kellys, thekelleys dnsmasq
canonical ltd.commercialGBOperating Systemsaka canonical
novell inc.commercialUSOperating Systems
and 18 more affected products View all →

Exploitability

Official Patch Available

References

https://capec.mitre.org/data/definitions/495.html
capec.mitre.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6UQ6LKDTLSSD64TBIZ3XEKBM2SWC63VV/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OU2ZT4ITSEOOR2CFBAHK4Z67KXJIEWQA/
lists.fedoraproject.org
and 29 more references View all →

Timeline

Published
Mar 15, 2023
Last Updated
Nov 3, 2025

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