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CVE-2013-3956

38
FAUCET Score

CVE-2013-3956 describes a local privilege escalation vulnerability in the NICM.SYS kernel driver (version 3.1.11.0) of various Novell Client versions running on several Microsoft Windows operating systems, including Windows XP, Server 2003, Vista, Server 2008, Server 2008 R2, Windows 7, Windows 8, and Server 2012. An attacker can exploit this by making a crafted IOCTL call (0x143B6B) to gain elevated privileges. With a CVSS score of 7.2 (AV:L/AC:L/Au:N/C:C/I:C/A:C), this vulnerability is considered highly severe, requiring local access but with low attack complexity, and potentially leading to complete compromise of confidentiality, integrity, and availability. While not listed on the KEV catalog, exploit code is publicly available, including a Metasploit module and entries in ExploitDB, indicating a high potential for exploitation, further supported by significant community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
4.91CPE matchmatch criteria
cpe:2.3:a:novell:client:4.91:sp5:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:novell:client:2.0:sp2:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:novell:client:2.0:sp3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.2HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
7.80%
Probability of exploitation in next 30 days
EPSS Percentile
94.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Metasploit: Novell Client 2 SP3 nicm.sys Local Privilege Escalation · May 22, 2013
ExploitDB: EDB-27191 · Jul 29, 2013
This CVE's current EPSS score of 0.0780 is in the 98th percentile among its peer group of 3,237 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

pastebin.com / GB4iiEwR
Exploit
exploit-db.com / exploits/26452
exploit-db.com / exploits/27191
novell.com / support/kb/doc.php
Vendor Advisory