Path Traversal in Broadcom Reactor Netty

CVE-2023-34062

In Reactor Netty HTTP Server, versions 1.1.x prior to 1.1.13 and versions 1.0.x prior to 1.0.39, a malicious user can send a request using a specially crafted URL that can lead to a directory traversal attack. Specifically, an application is vulnerable if Reactor Netty HTTP Server is configured to serve static resources.

Vulnerability class: Path Traversal (Directory Traversal)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.011 (64.9th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-34062: held from 0.011 to 0.011.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: +0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-34062?
CVE-2023-34062 is a high-severity vulnerability in Broadcom Reactor Netty, classified under Path Traversal. CVSS score: 7.5/10. Published 2023-11-15.
How severe is CVE-2023-34062?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2023-34062 known to be exploited?
5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.