{"cve":"CVE-2019-25034","nvd":{"published":"2021-04-27T06:15:07.533","modified":"2026-06-17T02:31:31.337","status":"Modified","description":"Unbound before 1.9.5 allows an integer overflow in sldns_str2wire_dname_buf_origin, leading to an out-of-bounds write. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-190"],"references":["https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html","https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/","https://security.netapp.com/advisory/ntap-20210507-0007/","https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html","https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/"],"products":["debian:debian_linux","nlnetlabs:unbound"],"source":"nvd","synced_at":"2026-10-19T21:17:01.373894544+00:00"},"epss":{"cve":"CVE-2019-25034","score":0.02881,"percentile":0.86857,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}