Dashboard / CVE-2025-47712

CVE-2025-47712

MEDIUM
MEDIUM Priority: 0.03 BB Relevance: 63/100
Published: 2025-06-09 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

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

Description

A flaw exists in the nbdkit "blocksize" filter that can be triggered by a specific type of client request. When a client requests block status information for a very large data range, exceeding a certain limit, it causes an internal error in the nbdkit, leading to a denial of service.

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
— — 1.21.16 < 1.38.6
— — 1.40.0 < 1.40.6
— — 1.42.0 < 1.42.3
nbdkit_project nbdkit -

References & Advisories (3)

https://bugzilla.redhat.com/show_bug.cgi?id=2365724
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.53%
Raw Score 0.005270
Percentile 45.2%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00527
2026-11-13
0.00527
2026-11-12
0.00527
2026-11-10
0.00527
2026-11-09
0.00527
2026-11-08
0.00527
2026-11-07
0.00527
2026-11-06
0.00527
2026-11-05
0.00527

Intelligence Sources

mitre ref →
nvd ref →

External Links