CVE-2013-3956

Exp

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.

Published: 2013-07-31 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2013-3956 is rated High Exploit Risk (70.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.15%). Core evidence: 3 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2013-3956

EDB-ID Source Kind Published Link
27191 exploit_db edb 2013-07-29 Exploit-DB ↗
26452 exploit_db edb 2013-06-26 Exploit-DB ↗
nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2013-3956

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-12-28 4.36% 2.15% -2.21%
2 2025-12-27 2.15% 4.36% +2.21%
3 2025-10-28 2.15%

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-3956

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
3.9 10.0 [email protected]

Weakness enumeration for CVE-2013-3956

Affected software / configurations for CVE-2013-3956

Vendor Product Version Raw CPE
novell client 4.91 cpe:2.3:a:novell:client:4.91:sp5:*:*:*:*:*:*
novell client 2.0 cpe:2.3:a:novell:client:2.0:sp2:*:*:*:*:*:*
novell client 2.0 cpe:2.3:a:novell:client:2.0:sp3:*:*:*:*:*:*

References for CVE-2013-3956

cvelogic Threat Intelligence