unbound: Unbound: Denial of Service via crafted DNS-over-QUIC connection
| Reporter | Title | Published | Views | Family All 25 |
|---|---|---|---|---|
 | CVE-2026-55991 | 22 Jul 202613:10 | – | attackerkb |
 | CVE-2026-55991 affecting package unbound for versions less than 1.25.2-1 | 23 Jul 202620:32 | – | cbl_mariner |
 | CVE-2026-55991 | 22 Jul 202613:52 | – | circl |
 | CVE-2026-55991 | 22 Jul 202613:10 | – | cve |
 | CVE-2026-55991 Remote DNS-over-QUIC (DoQ) flow-control assertion failure in libngtcp2 | 22 Jul 202613:10 | – | cvelist |
 | CVE-2026-55991 | 22 Jul 202613:10 | – | debiancve |
 | EUVD-2026-47683 | 22 Jul 202613:10 | – | euvd |
 | unbound -- multiple vulnerabilities | 22 Jul 202600:00 | – | freebsd |
 | FreeBSD : unbound -- multiple vulnerabilities (f63b4b88-6901-4c12-b13d-5a821e25e9bf) | 26 Jul 202600:00 | – | nessus |
| Linux Distros Unpatched Vulnerability : CVE-2026-55991 | 25 Jul 202600:00 | – | nessus |
10
| OS | OS Version | Architecture | Package | Package Version | Filename |
|---|---|---|---|---|---|
| Red Hat Hardened Images | any | aarch64 | python3-unbound | 1.25.2-0.1.hum1 | python3-unbound-1.25.2-0.1.hum1.aarch64.rpm |
| Red Hat Hardened Images | any | x86_64 | python3-unbound | 1.25.2-0.1.hum1 | python3-unbound-1.25.2-0.1.hum1.x86_64.rpm |
| Red Hat Hardened Images | any | noarch | unbound-munin | 1.25.2-0.1.hum1 | unbound-munin-1.25.2-0.1.hum1.noarch.rpm |
Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
29 Jul 2026 11:22Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.15.9
EPSS0.00246
SSVC