Ldns

This hub aggregates every CVE we track for Ldns, a product in the networking infrastructure space. Use it to gauge the current risk picture and drill into individual advisories.

Severity distribution

Monthly trend

The 8 most recently published vulnerabilities affecting Ldns.

• CVE-2026-10846Insufficient verification that responses belong to a query7.5Jun 10, 2026
• CVE-2020-19861When a zone file in ldns 1.7.1 is parsed, the function ldns_nsec3_salt_data is too trusted for the length value obtained from the zone file. When the memcpy is copied, the 0xfe - ldns_rdf_size(salt...7.5Jan 21, 2022
• CVE-2020-19860When ldns version 1.7.1 verifies a zone file, the ldns_rr_new_frm_str_internal function has a heap out of bounds read vulnerability. An attacker can leak information on the heap by constructing a z...6.5Jan 21, 2022
• CVE-2017-1000232A double-free vulnerability in str2host.c in ldns 1.7.0 have unspecified impact and attack vectors.9.8Nov 17, 2017
• CVE-2017-1000231A double-free vulnerability in parse.c in ldns 1.7.0 have unspecified impact and attack vectors.9.8Nov 17, 2017
• CVE-2014-3209The ldns-keygen tool in ldns 1.6.x uses the current umask to set the privileges of the private key, which might allow local users to obtain the private key by reading the file.2.1Nov 16, 2014
• CVE-2011-3581Heap-based buffer overflow in the ldns_rr_new_frm_str_internal function in ldns before 1.6.11 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a ...6.8Nov 4, 2011
• CVE-2009-1086Heap-based buffer overflow in the ldns_rr_new_frm_str_internal function in ldns 1.4.x allows remote attackers to cause a denial of service (memory corruption) and possibly execute arbitrary code vi...6.4Mar 25, 2009