Is CVE-2019-5608 actively exploited?

No active exploitation of CVE-2019-5608 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-5608 be exploited remotely?

Yes. CVE-2019-5608 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2019-5608?

CVE-2019-5608 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2019-5608

CRITICAL

CVE-2019-5608

CWE-125Published: August 30, 2019· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

In FreeBSD 12.0-STABLE before r350648, 12.0-RELEASE before 12.0-RELEASE-p9, 11.3-STABLE before r350650, 11.3-RELEASE before 11.3-RELEASE-p2, and 11.2-RELEASE before 11.2-RELEASE-p13, the ICMPv6 input path incorrectly handles cases where an MLDv2 listener query packet is internally fragmented across multiple mbufs. A remote attacker may be able to cause an out-of-bounds read or write that may cause the kernel to attempt to access an unmapped page and subsequently panic.

NVD Source

Technical Analysis

CVE-2019-5608 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.