{"id":"CVE-2026-24028","title":"An attacker might be able to trigger an out-of-bounds read by sending a crafted DNS response packet, when custom Lua code uses newDNSPacketOverlay to parse DNS packets","summary":"An attacker might be able to trigger an out-of-bounds read by sending a crafted DNS response packet, when custom Lua code uses newDNSPacketOverlay to parse DNS packets. The out-of-bounds read might trigger a crash, leading to a denial of…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","cwe":["CWE-126"],"vendor":"powerdns","product":"dnsdist","affected":["dnsdist >= 1.9.0, < 1.9.12","dnsdist >= 2.0.0, < 2.0.3"],"patched":["dnsdist 2.0.3"],"published":"2026-03-31","updated":"2026-07-25","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-24028","references":[{"url":"https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.html","label":"security@open-xchange.com"}],"tags":["nvd"],"epss":0.01028,"epssPercentile":0.6217,"ingestedAt":"2026-07-25T10:53:53.166Z","slug":"CVE-2026-24028","body":"## Overview\n\nAn attacker might be able to trigger an out-of-bounds read by sending a crafted DNS response packet, when custom Lua code uses newDNSPacketOverlay to parse DNS packets. The out-of-bounds read might trigger a crash, leading to a denial of service, or access unrelated memory, leading to potential information disclosure.\n\n## Affected\n\n- `dnsdist >= 1.9.0, < 1.9.12`\n- `dnsdist >= 2.0.0, < 2.0.3`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `dnsdist 2.0.3`","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}