What’s Vulnerable › Vulnerabilities

CVE-2019-13207

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-07-03 · updated 2026-06-17
• Weakness: CWE-787

Description

nsd-checkzone in NLnet Labs NSD 4.2.0 has a Stack-based Buffer Overflow in the dname_concatenate() function in dname.c.

Affected products

• NLNETLABS Name Server Daemon: 4.2.0

References

• https://github.com/NLnetLabs/nsd/issues/20
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FDS4H7WVHQGCX3LF72F5K22VJXN7HDBB/
• https://github.com/NLnetLabs/nsd/issues/20
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FDS4H7WVHQGCX3LF72F5K22VJXN7HDBB/

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