CVE-2007-3740

4.4 MEDIUM 0.4% exploit odds Fix listed

What it is

The CIFS filesystem in the Linux kernel before 2.6.22, when Unix extension support is enabled, does not honor the umask of a process, which allows local users to gain privileges.

At a glance

Exploitability: Can be exploited locally on the machine without logging in. Limited direct impact.
Exploit odds: 0.4% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2007-09-14 01:17 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 22:42 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.4% in the next 30 days (EPSS).
Severity: 4.4 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2007-09-14 01:17 UTC
Last modified: 2026-06-16 22:42 UTC
Exploit probability: 0.4% · EPSS, next 30 days
Weakness: CWE-264
Record status: Modified

Affected

Linux Kernel ≤ 2.6.21.7
Linux Kernel 2.2.27
Linux Kernel 2.4.36
Linux Kernel 2.4.36.1
Linux Kernel 2.4.36.2
Linux Kernel 2.4.36.3
Linux Kernel 2.4.36.4
Linux Kernel 2.4.36.5

Attack profile CVSS 2.0 · 4.4

Attack vector: Local
Complexity: Medium
Authentication: None
Confidentiality: Partial
Integrity: Partial
Availability: Partial

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2007-3740.md and follow it. Check whether this project is affected by CVE-2007-3740. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record