VulnerabilityModified

CVE-2017-18241

fs/f2fs/segment.c in the Linux kernel before 4.13 allows local users to cause a denial of service (NULL pointer dereference and panic) by using a noflush_merge option that triggers a NULL value for a flush_cmd_control data structure.

MEDIUM 5.5EPSS 0.41%

Does this matter?

Lower severity and a low EPSS score (0.41%). Track it; it rarely justifies an emergency change on its own.

Description

CVSS 3.0: 5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.41% probability · 35th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-476
Affected: linux/linux kernel · debian/debian linux · canonical/ubuntu linux
Source: cve@mitre.org

EPSS trend

EPSS 0.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d4fdf8ba0e5808ba9ad6b44337783bd9935e0982Patch, Vendor Advisory
https://github.com/torvalds/linux/commit/d4fdf8ba0e5808ba9ad6b44337783bd9935e0982Patch, Third Party Advisory
https://usn.ubuntu.com/3910-1/Third Party Advisory
https://usn.ubuntu.com/3910-2/Third Party Advisory
https://www.debian.org/security/2018/dsa-4187Third Party Advisory
https://www.debian.org/security/2018/dsa-4188Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d4fdf8ba0e5808ba9ad6b44337783bd9935e0982Patch, Vendor Advisory
https://github.com/torvalds/linux/commit/d4fdf8ba0e5808ba9ad6b44337783bd9935e0982Patch, Third Party Advisory
https://usn.ubuntu.com/3910-1/Third Party Advisory
https://usn.ubuntu.com/3910-2/Third Party Advisory
https://www.debian.org/security/2018/dsa-4187Third Party Advisory
https://www.debian.org/security/2018/dsa-4188Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.