What is the CVSS score of CVE-2013-3956?

CVE-2013-3956 has a CVSS 2.0 base score of 7.2 (High). CVSS vector: AV:L/AC:L/Au:N/C:C/I:C/A:C. EPSS exploitation probability: 2.2%.

Is there a public PoC exploit available for CVE-2013-3956?

Yes, a public proof-of-concept exploit is available for CVE-2013-3956. Prioritise patching immediately. EPSS: 2.2%.

Client CVE-2013-3956

HIGH

Permissions, Privileges, and Access Controls (CWE-264)

2013-07-31 cve@mitre.org

Privilege Escalation Microsoft Client Novell

7.2

CVSS 2.0 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-264 ASVS 5.0 V8 - Authorization Permission and access control MITRE ATT&CK 1 technique across 1 tactic: Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 7.2 (HIGH). Attack characteristics: local attack vector, low complexity. Public proof-of-concept exploit code is available. EPSS exploitation probability: 2.15%.
Exploit ScenarioDerived	Successful exploitation could compromise the high-severity affected system.

Act Now Prioritize within 24-48h. Why: Active threat signals + CRITICAL/HIGH severity.

No patch listed yet 2.2% exploitation probability (EPSS)

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AnalysisAI

The NICM.SYS kernel driver 3.1.11.0 in Novell Client 4.91 SP5 on Windows XP and Windows Server 2003; Novell Client 2 SP2 on Windows Vista and Windows Server 2008; and Novell Client 2 SP3 on Windows. Rated high severity (CVSS 7.2), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. 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-264. The NICM.SYS kernel driver 3.1.11.0 in Novell Client 4.91 SP5 on Windows XP and Windows Server 2003; Novell Client 2 SP2 on Windows Vista and Windows Server 2008; and Novell Client 2 SP3 on Windows Server 2008 R2, Windows 7, Windows 8, and Windows Server 2012 allows local users to gain privileges via a crafted 0x143B6B IOCTL call. Affected products include: Novell Client.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.2 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Local

Attack Complexity

Low

Confidentiality

Integrity

Availability

DescriptionCVE.org

The NICM.SYS kernel driver 3.1.11.0 in Novell Client 4.91 SP5 on Windows XP and Windows Server 2003; Novell Client 2 SP2 on Windows Vista and Windows Server 2008; and Novell Client 2 SP3 on Windows Server 2008 R2, Windows 7, Windows 8, and Windows Server 2012 allows local users to gain privileges via a crafted 0x143B6B IOCTL call.

Threat Intelligence Overview

EPSS Score

2.2%

Top 16% exploitable

Exploit

POC

Public exploit code exists

Data Quality

5 sources

Confidence: Medium

NVD

CVE.org

EPSS POC (1)

Exploit-DB

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 Yes

EPSS 2.2%

Patch available No

Active threat Yes

Deciding rule

Active threat signals + CRITICAL/HIGH severity

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.

SSVC AssessmentENISA

SSVC Decision· derived

Out-of-Cycle

Exploitation· derived

Active

System Exposure· derived

Small

Automatable· derived

Human Impact· derived

High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +2

CVSS: +36

PoC: +20

Weaponized: +15

Threat intel: 0

Gov advisory: 0

Attack Technique

Privilege Escalation HIGH

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.