In NLnetLabs Unbound up to and including 1.26.0, a degradation of service vulnerability is present in the TCP/DoT reading procedure where there is no…
In NLnetLabs Unbound up to and including 1.26.0, a degradation of service vulnerability is present in the TCP/DoT reading procedure where there is no limit on consecutive reads. A malicious actor that can stream and sustain a rate of distinct uncached names over the TCP/DoT connection, monopolizes a single worker's entire event loop for as long as its writes stay ahead of the drain.
Read at NIST National Vulnerability Database (CVE API 2.0)
- Product
- dnsmasq / Unbound / PowerDNS
- CVSS
- 5.3
- EPSS
- 0.005 (p42)
- Exposure class
- Edge / VPN / firewall
Why it ranks 21 (Routine)
- CVSS 5.3 medium
- Exposed product class: edge / VPN / firewall
- Covered by 2 independent sources
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- CVE-2026-80225 on this site · NVD · CVE.org · Vulnpedia
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