High severity7.5NVD Advisory· Published Jun 25, 2026· Updated Jun 26, 2026
CVE-2026-12245
CVE-2026-12245
Description
NSD from version 4.13.0 has a heap use-after-free bug in logging errors on TLS connections, causing a crash of the server process, which can be triggered trivially by sending a DNS query over a DoT connection, and closing the connection without reading the response.
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Affected products
3- osv-coords2 versions
< 4.14.3-bp160.1.1+ 1 more
- (no CPE)range: < 4.14.3-bp160.1.1
- (no CPE)range: < 4.14.3-1.1
Patches
Vulnerability mechanics
References
1- www.nlnetlabs.nl/downloads/nsd/CVE-2026-12245.txtnvdPatchVendor Advisory
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