https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-13T06:51:46.617385+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cve-2026-4891 CVE-2026-4891 — CVE-2026-4891 2026-10-13T06:51:46.633744+00:00

Affected: dnsmasq, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.6 Extended Update Support, Red Hat OpenShift Container Platform 4.19, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7

A heap-based out-of-bounds read vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service via a crafted DNS packet.

 https://cve.radiocsirt.org/vuln/usn-8268-1 USN-8268-1 — dnsmasq vulnerabilities 2026-10-13T06:51:46.633809+00:00

Affected: Ubuntu:Pro:14.04:LTS: dnsmasq, Ubuntu:Pro:16.04:LTS: dnsmasq, Ubuntu:Pro:18.04:LTS: dnsmasq, Ubuntu:Pro:20.04:LTS: dnsmasq, Ubuntu:22.04:LTS: dnsmasq, Ubuntu:24.04:LTS: dnsmasq, Ubuntu:25.10: dnsmasq, Ubuntu:26.04:LTS: dnsmasq

Andrew S. Fasano, Royce M, and Hugo Martinez Ray discovered that Dnsmasq did not allocate the necessary space to store domain names in some contexts. An attacker could possibly use this issue to write out-of-bounds, and could cause a denial of service or execute arbitrary code. (CVE-2026-2291)

Royce M discovered that Dnsmasq could loop infinitely due to erroneously missing the window header. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, Ubuntu 25.10, and Ubuntu 26.04 LTS. (CVE-2026-4890)

Royce M discovered that a maliciously crafted packet could cause Dnsmasq to report a negative length. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, Ubuntu 25.10, and Ubuntu 26.04 LTS. (CVE-2026-4891)

Royce M and Asim Viladi Oglu Manizada discovered that certain configurations of Dnsmasq could write over the DHCPv6 CLID buffer within a privileged helper. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-4892)

Royce M discovered that certain configurations of Dnsmasq could bypass internal bounds checks. An attacker could possibly use this issue to permit malformed packets, and could cause a denial of service. (CVE-2026-4893)

Hugo Martinez discovered that…