PT-2026-6571 · Unknown · Dnsmasq-Utils

Josue Encinar · Published 2026-02-05 · Updated 2026-05-26 · CVE-2020-37127

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Dnsmasq-utils version 2.79-1

Description The software contains a buffer overflow in the dhcp release utility. An attacker can cause a denial of service by providing input exceeding 16 characters, leading to a core dump and process termination. The vulnerability is triggered by supplying excessive input to the dhcp release utility.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

CVE-2020-37127

USN-8311-1

Affected Products

Dnsmasq-Utils

References · 12

• 🔥 https://exploit-db.com/exploits/48301 · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-37127 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-8311-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-8311-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-37127 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-37127 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2020-37127 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-37127 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-37127 · Security Note
• https://t.me/CVEtracker/43819 · Telegram Post
• https://vulncheck.com/advisories/dnsmasq-utils-dhcprelease-denial-of-service · Note
• https://launchpad.net/ubuntu/+source/dnsmasq/2.79-1 · Note