What’s Vulnerable › Vulnerabilities

CVE-2026-40719

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-15 · updated 2026-06-17
• Weakness: CWE-670

Description

Deadwood in MaraDNS 3.5.0036 allows attackers to exhaust connection slots via a zone whose authoritative nameserver address cannot be resolved.

Affected products

• MaraDNS: 3.5.0036

References

• https://github.com/samboy/MaraDNS/security/advisories/GHSA-cfc6-vhrv-62cj
• https://maradns.samiam.org/changelog.html
• https://github.com/samboy/MaraDNS/security/advisories/GHSA-cfc6-vhrv-62cj

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