What is the CVSS score of CVE-2015-0847?

CVE-2015-0847 has a CVSS 2.0 base score of 7.8 (High). CVSS vector: AV:N/AC:L/Au:N/C:N/I:N/A:C. EPSS exploitation probability: 2.6%.

Is there a patch available for CVE-2015-0847?

Yes, a patch is available for CVE-2015-0847. Update the affected software to the latest version immediately.

Nbd CVE-2015-0847

HIGH

DEPRECATED: Code (CWE-17)

2015-05-29 security@debian.org

Denial Of Service Canonical Ubuntu Linux Nbd Wouter Verhelst

7.8

CVSS 2.0 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-17
Impact	CVSS score of 7.8 (HIGH). Attack characteristics: network attack vector, low complexity. EPSS exploitation probability: 2.55%.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

Patch available 2.6% exploitation probability (EPSS)

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AnalysisAI

nbd-server.c in Network Block Device (nbd-server) before 3.11 does not properly handle signals, which allows remote attackers to cause a denial of service (deadlock) via unspecified vectors. Rated high severity (CVSS 7.8), this vulnerability is remotely exploitable, low attack complexity.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

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Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-17. nbd-server.c in Network Block Device (nbd-server) before 3.11 does not properly handle signals, which allows remote attackers to cause a denial of service (deadlock) via unspecified vectors. Affected products include: Canonical Ubuntu Linux, Wouter Verhelst Nbd. Version information: before 3.11.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.8 HIGH

AV:N/AC:L/Au:N/C:N/I:N/A:C

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Confidentiality

None

Integrity

None

Availability

DescriptionCVE.org

nbd-server.c in Network Block Device (nbd-server) before 3.11 does not properly handle signals, which allows remote attackers to cause a denial of service (deadlock) via unspecified vectors.

Threat Intelligence Overview

EPSS Score

2.6%

Top 14% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 2.6%

Patch available Yes

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.