CVE-2021-26567

HIGH

Synology Diskstation Manager < 6.2.3-25426-3 - Out-of-Bounds Write

Title source: rule

Description

Stack-based buffer overflow vulnerability in frontend/main.c in faad2 before 2.2.7.1 allow local attackers to execute arbitrary code via filename and pathname options.

Scores

CVSS v3 7.8
EPSS 0.0113
EPSS Percentile 78.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

CWE
CWE-121 CWE-787
Status published

Affected Products (5)

synology/diskstation_manager < 6.2.3-25426-3
synology/vs960hd_firmware
synology/skynas_firmware
synology/diskstation_manager_unified_controller
faad2_project/faad2 < 2.2.7.1

Timeline

Published Feb 26, 2021
Tracked Since Feb 18, 2026