CVE & CISA-KEV Catalog

CVE-2025-47711

MEDIUM
6.5
CVSS v3
NVD

Description

There's a flaw in the nbdkit server when handling responses from its plugins regarding the status of data blocks. If a client makes a specific request for a very large data range, and a plugin responds with an even larger single block, the nbdkit server can encounter a critical internal error, leading to a denial-of-service.

How to fix

Remediation Available
nbdkitDebian
Fixed in:1.42.3-1CVE-2025-47711
Fixed in:1.42.3-1CVE-2025-47711

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.36%probability of exploitation in 30 days
28thpercentile

Low risk: more likely to be exploited than 28% of all known CVEs.

References

Vendor Advisory1
Issue Tracking1
Other references1

Related Vulnerabilities

Other CWE-193 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2021-3156High7.899%KEVFix
CVE-2003-0466Critical9.878%--
CVE-2023-44444High7.856%-Fix
CVE-2021-23017High7.753%-Fix
CVE-2023-28709High7.552%-Fix
CVE-2018-8828Critical9.831%-Fix
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Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-30.