CVE-2026-80225EPSS p39.4%
CVE-2026-80225CVE-2026-80225
nlnetlabs / unbound
Description
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.
Scoring
| CVSS | 5.3 () |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| EPSS | 0.48% probability of exploitation · percentile 39.4% · 2026-10-05T12:00:23Z |
| Last modified | 2026-09-23 |