Is CVE-2019-11495 actively exploited?

No active exploitation of CVE-2019-11495 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-11495 be exploited remotely?

Yes. CVE-2019-11495 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2019-11495?

CVE-2019-11495 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2019-11495

CRITICAL

CVE-2019-11495

CWE-335Published: September 10, 2019· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

In Couchbase Server 5.1.1, the cookie used for intra-node communication was not generated securely. Couchbase Server uses erlang:now() to seed the PRNG which results in a small search space for potential random seeds that could then be used to brute force the cookie and execute code against a remote system. This has been fixed in version 6.0.0.

NVD Source

Technical Analysis

CVE-2019-11495 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.