AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2020-9391

MEDIUM · CVSS 5.5 EPSS 0.50%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-02-25 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE
CVE-2020-9391
Severity
MEDIUM
CVSS
5.5
EPSS
0.50%
Linux

Original NVD Description

An issue was discovered in the Linux kernel 5.4 and 5.5 through 5.5.6 on the AArch64 architecture. It ignores the top byte in the address passed to the brk system call, potentially moving the memory break downwards when the application expects it to move upwards, aka CID-dcde237319e6. This has been observed to cause heap corruption with the GNU C Library malloc implementation.