Is CVE-2023-34054 actively exploited?

No active exploitation of CVE-2023-34054 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-34054 be exploited remotely?

Yes. CVE-2023-34054 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-34054?

CVE-2023-34054 has a CVSS score of 7.5 (HIGH).

HOME VULNERABILITIESCVE-2023-34054

HIGH

CVE-2023-34054

NVD-CWE-noinfoPublished: November 28, 2023· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official Description

In Reactor Netty HTTP Server, versions 1.1.x prior to 1.1.13 and versions 1.0.x prior to 1.0.39, it is possible for a user to provide specially crafted HTTP requests that may cause a denial-of-service (DoS) condition.

Specifically, an application is vulnerable if Reactor Netty HTTP Server built-in integration with Micrometer is enabled.

NVD Source

Technical Analysis

CVE-2023-34054 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 availability disruption (denial of service), with a CVSS base score of 7.5.