CVE-2020-37127

6.9 mediumEPSS 0.2%

Medium (6.9). EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

6.9 medium

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

CVSS 3.1

5.5 medium

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 11% of CVEs (scores of 2026-10-31)
CWE: CWE-121
Published: 2026-02-05
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://launchpad.net/ubuntu/+source/dnsmasq/2.79-1
https://www.exploit-db.com/exploits/48301
https://www.vulncheck.com/advisories/dnsmasq-utils-dhcprelease-denial-of-service

Check your stack JSON