SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-10877

Linux kernel ext4 filesystem is vulnerable to an out-of-bound access in the ext4_ext_drop_refs() function when operating on a crafted ext4 filesystem image.

MEDIUM 6.5EPSS 2.22%

Does this matter?

Lower severity and a low EPSS score (2.22%). Track it; it rarely justifies an emergency change on its own.

Description

Linux kernel ext4 filesystem is vulnerable to an out-of-bound access in the ext4_ext_drop_refs() function when operating on a crafted ext4 filesystem image.

CVSS 3.0
6.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
EPSS
2.22% probability · 83th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-125
Affected
canonical/ubuntu linux · linux/linux kernel · debian/debian linux · redhat/enterprise linux
Source
secalert@redhat.com
EPSS trend
0%3%5%27 October 2026: 2.22%27 October 202627 October 2026

EPSS 2.2% 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.