CVE-2020-37127CWE-121

dnsmasq-utils 2.79-1 - 'dhcp_release' Denial of Service

Medium · published February 5, 2026

CVSS v4.0
6.9
EPSS
0%
Percentile
10.9
In the wild
Unconfirmed
What it is

Dnsmasq-utils 2.79-1 contains a buffer overflow vulnerability in the dhcp_release utility that allows attackers to cause a denial of service by supplying excessive input. Attackers can trigger a core dump and terminate the dhcp_release process by sending a crafted input string longer than 16 characters.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00212 · 10.9th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2026-02-05T16:13Z
EPSS history
Timeline
  • 05 FEB 16:13Z
    dnsmasq-utils 2.79-1 - 'dhcp_release' Denial of Service
    cvelistv5