The vulnerability of the Unbound DNS server, related to insufficient validation of input data and improper implementation of functions, allows a hacker to trigger a service failure.
🗓️ 31 Jul 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 4 Views
| Reporter | Title | Published | Views | Family All 103 |
|---|---|---|---|---|
 | Unbound -- Multiple vulnerabilities | 20 May 202600:00 | – | freebsd |
| FreeBSD -- Multiple vulnerabilities in unbound | 9 Jun 202600:00 | – | freebsd |
 | CVE-2026-42534 | 20 May 202609:19 | – | attackerkb |
 | Amazon Linux 2023 : python3-unbound, unbound, unbound-anchor (ALAS2023-2026-1756) | 27 May 202600:00 | – | nessus |
| Amazon Linux 2 : unbound, --advisory ALAS2-2026-3322 (ALAS-2026-3322) | 8 Jun 202600:00 | – | nessus |
| Amazon Linux 2 : unbound, --advisory ALAS2UNBOUND-1.17-2026-008 (ALASUNBOUND-1.17-2026-008) | 20 Jul 202600:00 | – | nessus |
| Alibaba Cloud Linux 3 : 0207: unbound (ALINUX3-SA-2026:0207) | 16 Jul 202600:00 | – | nessus |
| AlmaLinux 10 : unbound (ALSA-2026:36320) | 31 Jul 202600:00 | – | nessus |
| AlmaLinux 9 : unbound (ALSA-2026:36777) | 31 Jul 202600:00 | – | nessus |
| Debian dsa-6304 : libunbound-dev - security update | 28 May 202600:00 | – | nessus |
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31 Jul 2026 00:00Current
5.5Medium risk
Vulners AI Score5.5
CVSS 25
CVSS 35.3
EPSS0.00583