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CVE-2007-3843
The Linux kernel before 2.6.23-rc1 checks the wrong global variable for the CIFS sec mount option, which might allow remote attackers to…
- 4.3MediumCVSS base score
- 2.6%Exploitation in 30 daysEPSS · top 14% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The Linux kernel before 2.6.23-rc1 checks the wrong global variable for the CIFS sec mount option, which might allow remote attackers to spoof CIFS network traffic that the client configured for security signatures, as demonstrated by lack of signing despite sec=ntlmv2i in a SetupAndX request.
Timeline
ID reserved
By redhat
- 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 | Medium4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
- EPSS (exploitation in 30 days)
- 2.6% · top 14% 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: Medium 4.3.
Affected products
n/a
- affected n/a
References
18
- oval:org.mitre.oval:def:9670 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 27747 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 28806 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- DSA-1363 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- http://kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.23-rc1 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2007:0939 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-510-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 25244 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://support.avaya.com/elmodocs2/security/ASA-2007-474.htm (opens in a new tab)x_refsource_CONFIRMx_transferred
- 26647 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 27912 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 26760 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- RHSA-2007:0705 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 26366 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- SUSE-SA:2007:064 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- SUSE-SA:2008:006 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=246595 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 27436 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_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-2007-3827 (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-2007-3843)Record last updated .