Dashboard / CVE-2023-5871

CVE-2023-5871

MEDIUM
MEDIUM Priority: 0.06 BB Relevance: 71/100
Published: 2023-11-27 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: Low

Description

A flaw was found in libnbd, due to a malicious Network Block Device (NBD), a protocol for accessing Block Devices such as hard disks over a Network. This issue may allow a malicious NBD server to cause a Denial of Service.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
redhat enterprise_linux 9.0
redhat libnbd 1.17.4 – 1.18.2
redhat libnbd 1.19.1

References & Advisories (4)

https://access.redhat.com/errata/RHSA-2024:2204
vendor-advisory x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2247308
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

71 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

5.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS — Exploitation Probability

1.11%
Raw Score 0.011080
Percentile 66.4%
Date 2026-11-14

EPSS Trend

2026-11-14
0.01108
2026-11-13
0.01108
2026-11-12
0.01108
2026-11-10
0.01108
2026-11-09
0.01108
2026-11-08
0.01108
2026-11-07
0.01108
2026-11-06
0.01108
2026-11-05
0.01108
2026-11-04
0.01108

Intelligence Sources

mitre ref →
nvd ref →

External Links