Lucene search
+L

CVE-2026-40691

🗓️ 22 Jul 2026 13:04:35Reported by NLnet LabsType 
cve
 cve
🔗 web.nvd.nist.gov👁 24 Views

Unbound suffers denial of service from oversized encrypted replies over TCP when bounds are missing.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-40691
22 Jul 202613:04
attackerkb
cbl_mariner
CBLMariner
CVE-2026-40691 affecting package unbound for versions less than 1.25.2-1
23 Jul 202620:32
cbl_mariner
cvelist
Cvelist
CVE-2026-40691 Packet of death for DNSCrypt over TCP
22 Jul 202613:04
cvelist
debiancve
Debian CVE
CVE-2026-40691
22 Jul 202613:04
debiancve
euvd
EUVD
EUVD-2026-47664
22 Jul 202613:04
euvd
freebsd
FreeBSD
unbound -- multiple vulnerabilities
22 Jul 202600:00
freebsd
fedora
Fedora
[SECURITY] Fedora 43 Update: unbound-1.25.2-1.fc43
31 Jul 202601:15
fedora
fedora
Fedora
[SECURITY] Fedora 44 Update: unbound-1.25.2-1.fc44
30 Jul 202601:18
fedora
nessus
Tenable Nessus
Fedora 43 : unbound (2026-3170ee6a1c)
31 Jul 202600:00
nessus
nessus
Tenable Nessus
Fedora 44 : unbound (2026-e495bd59ef)
30 Jul 202600:00
nessus
Rows per page
NVD
Node
nlnetlabsunboundRange1.9.01.25.2
[
  {
    "vendor": "NLnet Labs",
    "product": "Unbound",
    "versions": [
      {
        "version": "1.9.0",
        "status": "affected",
        "lessThan": "1.25.2",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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

24 Jul 2026 13:57Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.17.5
EPSS0.00293
SSVC
24