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CVE-2007-5667
NWFILTER.SYS in Novell Client 4.91 SP 1 through SP 4 for Windows 2000, XP, and Server 2003 makes the \.\nwfilter device available for…
- 7.2HighCVSS base score
- 0.37%Exploitation in 30 daysEPSS · top 69% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
NWFILTER.SYS in Novell Client 4.91 SP 1 through SP 4 for Windows 2000, XP, and Server 2003 makes the \.\nwfilter device available for arbitrary user-mode input via METHOD_NEITHER IOCTLs, which allows local users to gain privileges by passing a kernel address as an argument and overwriting kernel memory locations.
Timeline
ID reserved
By mitre
- 22 days later
· 22 days later
Published
- 17 years later
· 17 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 0.37% · top 69% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.2.
Affected products
n/a
- affected n/a
References
8
- 27678 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- novell-client-nwfilter-privilege-escalation(38434) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 1018943 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://secure-support.novell.com/KanisaPlatform/Publishing/98/3260263_f.SAL_Public.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- ADV-2007-3846 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 26420 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 40867 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 20071112 Novell NetWare Client NWFILTER.SYS Local Privilege Escalation Vulnerability (opens in a new tab)third-party-advisoryx_refsource_IDEFENSEx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2007-5639 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2007-5667)Record last updated .