VDB
CVE-2020-37127
CVE-2020-37127
PUBLISHED
CVSS 5.5 MEDIUM
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.
EPSS 0.18% · 7.8th percentile
Risk Scores
CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score
0.18%
7.8th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:22.04:LTS | dnsmasq | 2.86-1.1ubuntu0.2, 2.86-1.1ubuntu0.3, 2.86-1.1 |
| Ubuntu:Pro:14.04:LTS | dnsmasq | 0, 2.66-4ubuntu1, 2.67-1 |
| Ubuntu:Pro:16.04:LTS | dnsmasq | 2.79-1ubuntu0.16.04.1+esm2, 2.75-1, 2.75-1ubuntu0.16.04.1 |
| Ubuntu:Pro:18.04:LTS | dnsmasq | 2.78-3, 2.79-1, * |
Timeline
- Feb 5, 2026 CVE Published
- Feb 6, 2026 EPSS Score
- Feb 8, 2026 EPSS Score
- Feb 11, 2026 EPSS Score
- Feb 13, 2026 EPSS Score
- Feb 15, 2026 EPSS Score
- Feb 17, 2026 EPSS Score
- Feb 20, 2026 EPSS Score
- Feb 22, 2026 EPSS Score
- Feb 24, 2026 EPSS Score
- Feb 26, 2026 EPSS Score
- Mar 1, 2026 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-37127 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-37127 third-party-advisory
- https://www.exploit-db.com/exploits/48301 third-party-advisory
- https://launchpad.net/ubuntu/+source/dnsmasq/2.79-1 third-party-advisory
- https://www.vulncheck.com/advisories/dnsmasq-utils-dhcprelease-denial-of-service third-party-advisory