7.5

CVE-2023-28450: thekelleys dnsmasq

CVSS: 7.5v3.1HighModified
AliasesALPINE-CVE-2023-28450MGASA-2023-0153SUSE-SU-2023:1930-1
Published 15-03-2023Last modified 03-11-2025
Open JSON

Vulnerability summary

CVE-2023-28450 is a high (CVSS 7.5) vulnerability in thekelleys dnsmasq. EPSS estimates a 1.77% chance of exploitation in the next 30 days, higher than 77.8% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
1.77%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 7 · Related 4
DLA-3974-1RHSA-2024:1544RHSA-2024:1545SUSE-SU-2025:0071-1SUSE-SU-2025:20118-1USN-6657-1

Timeline

  1. 15-03-2023
    PublishedVulnerability first disclosed.
  2. 03-11-2025
    Last modifiedVulnerability information updated.

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 metrics

6 scores · 6 sources · 1 version

EPSS trend

Probability

1.77%

Chance of exploitation in the next 30 days

Percentile

78%

Versus all other CVEs

30-day change

0.00 pp

From 1.77% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.77%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Suse10 products
  • dnsmasq&distro=HPE Helion OpenStack 8< 2.78-18.21.1
  • dnsmasq&distro=SUSE Linux Enterprise Micro 5.1< 2.86-150100.7.23.1
  • dnsmasq&distro=SUSE Linux Enterprise Micro 5.2< 2.86-150100.7.23.1
  • dnsmasq&distro=SUSE Linux Enterprise Real Time 15 SP3< 2.86-150100.7.23.1
  • dnsmasq&distro=SUSE Linux Enterprise Server 12 SP5< 2.78-18.21.1
Redhat5 products
  • dnsmasq< 0:2.85-6.el9_2.4 | < 0:2.85-14.el9 | < 0:2.79-31.el8
  • dnsmasq-debuginfo< 0:2.85-6.el9_2.4 | < 0:2.85-14.el9 | < 0:2.79-31.el8
  • dnsmasq-debugsource< 0:2.85-6.el9_2.4 | < 0:2.85-14.el9 | < 0:2.79-31.el8
  • dnsmasq-utils< 0:2.85-6.el9_2.4 | < 0:2.85-14.el9 | < 0:2.79-31.el8
  • dnsmasq-utils-debuginfo< 0:2.85-6.el9_2.4 | < 0:2.85-14.el9 | < 0:2.79-31.el8
Alpine1 product
  • dnsmasq< 2.86-r3 | < 2.86-r2 | < 2.86-r4 | < 2.87-r2 | < 2.89-r3
Debian1 product
  • dnsmasq< 2.90-4~deb12u1 | < 2.90-1
Mageia1 product
  • dnsmasq< 2.85-6.mga8
Opensuse1 product
  • dnsmasq&distro=openSUSE Tumbleweed< 2.89-3.1
Thekelleys1 product
Ubuntu1 product
  • dnsmasq< 2.68-1ubuntu0.2+esm2 | < 2.79-1ubuntu0.16.04.1+esm2 | < 2.79-1ubuntu0.7 | < 2.80-1.1ubuntu1.7 | < 2.86-1.1ubuntu0.3

8 vendors · 21 products

References

40 links
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