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CVE-2007-5667

18
FAUCET Score

CVE-2007-5667 describes a local privilege escalation vulnerability in the NWFILTER.SYS driver of Novell Client 4.91 SP1-SP4 for Windows 2000, XP, and Server 2003. This flaw allows a local attacker to gain elevated privileges by passing a kernel address as an argument to METHOD_NEITHER IOCTLs, enabling the overwriting of kernel memory. With a CVSS score of 7.2 (High), this vulnerability has a low attack complexity and allows for complete compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
4.91CPE matchmatch criteria
cpe:2.3:a:novell:client:4.91:sp1:*:*:*:*:*:*
4.91CPE matchmatch criteria
cpe:2.3:a:novell:client:4.91:sp2:*:*:*:*:*:*
4.91CPE matchmatch criteria
cpe:2.3:a:novell:client:4.91:sp3:*:*:*:*:*:*
4.91CPE matchmatch criteria
cpe:2.3:a:novell:client:4.91:sp4:*:*:*:*:*:*

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
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 33rd percentile among its peer group of 3,241 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

No media coverage found for this CVE.

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

labs.idefense.com / intelligence/vulnerabilities/display.php
osvdb.org / 40867
secunia.com / advisories/27678
PatchVendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/38434
secure-support.novell.com / KanisaPlatform/Publishing/98/3260263_f.SAL_Public.html
Patch
securityfocus.com / bid/26420
securitytracker.com / id
vupen.com / english/advisories/2007/3846