CVE-2007-3843

Medium

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.

Package Linux Kernel
Published 2007-08-09
Last modified 2026-04-23
CVSS version 2.0
Patch available
Awaiting data

CVSS 2.0 score

4.3

out of 10
Medium
Attack Vector
Network
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
None
Integrity
Availability
None
Vector string
AV:N/AC:M/Au:N/C:N/I:P/A:N

References

The following references provide additional information about CVE-2007-3843 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

  • What is CVE-2007-3843?

    CVE-2007-3843 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.3 out of 10 . CVE-2007-3843 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2007-3843?

    CVE-2007-3843 has a CVSS score of 4.3 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:N/AC:M/Au:N/C:N/I:P/A:N .

  • Is there a patch available for CVE-2007-3843?

    No patch is currently available for CVE-2007-3843. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2007-3843 actively exploited?

    No — CVE-2007-3843 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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