Home/CVE/Stack-based buffer overflow vulnerability in frontend/main.c in faad2 before 2.2.7.1 allow local attackers to execute ar
CVE

CVE-2021-26567

Stack-based buffer overflow vulnerability in frontend/main.c in faad2 before 2.2.7.1 allow local attackers to execute ar

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.

HIGH · CVSS 7.8 EPSS 0.01128
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-121Stack-based Buffer Overflow
CWE-787Out-of-bounds Write
▤

Affected Products & Versions

5
synology diskstation manager< 6.2.3-25426-3
synology vs960hd firmwareall versions
synology skynas firmwareall versions
synology diskstation manager unified controllerall versions
faad2 project faad2< 2.2.7.1
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · security@synology.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 Feb 2021 · 10:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/knik0/faad2/commit/720f7004d6c4aabee19aad16e7c456ed76a3ebfaPatch
https://www.synology.com/security/advisory/Synology_SA_20_26Vendor Advisory
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