Lucene search
+L

CVE-2026-40691 Packet of death for DNSCrypt over TCP

🗓️ 22 Jul 2026 13:04:35Reported by NLnet LabsType 
cvelist
 cvelist
🔗 www.cve.org👁 8 Views

CVE-2026-40691 DNSCrypt over TCP can overflow memory in Unbound 1.9.0–1.25.1, causing denial of service.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-40691
22 Jul 202613:04
attackerkb
CVE
CVE-2026-40691
22 Jul 202613:04
cve
Debian CVE
CVE-2026-40691
22 Jul 202613:04
debiancve
EUVD
EUVD-2026-47664
22 Jul 202613:04
euvd
NVD
CVE-2026-40691
22 Jul 202614:17
nvd
OSV
DEBIAN-CVE-2026-40691
22 Jul 202617:48
osv
Positive Technologies
PT-2026-63371
22 Jul 202600:00
ptsecurity
RedhatCVE
CVE-2026-40691
22 Jul 202616:08
redhatcve
RedHat Linux
Important: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
22 Jul 202614:15
redhat
RedHat Linux
unbound: Unbound: Denial of Service via crafted DNSCrypt query
22 Jul 202614:15
redhat
Rows per page
[
  {
    "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