Dnsmasq 2.86 has a heap-based buffer overflow in dhcp_reply (called from dhcp_packet and FuzzDhcp). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-927.yaml
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35870
Source: Mitre, NVD
Published: 2022-01-01
Updated: 2024-11-21
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
EPSS: 0.00044