SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-16597

Incorrect access checking in overlayfs mounts could be used by local attackers to modify or truncate files in the underlying filesystem.

MEDIUM 5.5EPSS 0.54%

Does this matter?

Lower severity and a low EPSS score (0.54%). Track it; it rarely justifies an emergency change on its own.

Description

An issue was discovered in the Linux kernel before 4.8. Incorrect access checking in overlayfs mounts could be used by local attackers to modify or truncate files in the underlying filesystem.

CVSS 3.0
5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS
0.54% probability · 45th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-863
Affected
linux/linux kernel · netapp/active iq performance analytics services · netapp/element software · opensuse/leap
Source
cve@mitre.org
EPSS trend
0%3%5%27 October 2026: 0.54%27 October 202627 October 2026

EPSS 0.5% 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.

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