CVE-2023-39914: Nlnetlabs Bcder

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

NLnet Labs' bcder library up to and including version 0.7.2 panics while decoding certain invalid input data rather than rejecting the data with an error. This can affect both the actual decoding stage as well as accessing content of types that utilized delayed decoding.

Affected products

• Nlnetlabs Bcder: before 0.7.3 (fixed in 0.7.3)

Published 2023-09-13. Last modified 2026-06-17.