Is CVE-2019-13952 actively exploited?

No active exploitation of CVE-2019-13952 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-13952 be exploited remotely?

Yes. CVE-2019-13952 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2019-13952?

CVE-2019-13952 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2019-13952

CRITICAL

CVE-2019-13952

CWE-787Published: July 18, 2019· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

The set_ipv6() function in zscan_rfc1035.rl in gdnsd before 2.4.3 and 3.x before 3.2.1 has a stack-based buffer overflow via a long and malformed IPv6 address in zone data.

NVD Source

Technical Analysis

CVE-2019-13952 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.