What is CVE-2021-26567?

CVE-2021-26567 is a high-severity vulnerability in Faad2_project Faad2, classified under Stack-based Buffer Overflow. CVSS score: 7.8/10. Published 2021-02-26.

How severe is CVE-2021-26567?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Faad2_project Faad2

CVE-2021-26567

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.

Vulnerability class: Buffer Overflow

EPSS: 0.011 (62.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Faad2_project Faad2
Github/knik0 Faad2 — versions unspecified
Synology Diskstation_manager
Synology Diskstation_manager_unified_controller — versions 3.0
Synology Skynas
Synology Skynas_firmware
Synology Uc3200
Synology Vs960hd
Synology Vs960hd_firmware

Weakness classification (CWE)

References

security@synology.com (x_refsource_CONFIRM, Vendor Advisory)
security@synology.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-26567?: CVE-2021-26567 is a high-severity vulnerability in Faad2_project Faad2, classified under Stack-based Buffer Overflow. CVSS score: 7.8/10. Published 2021-02-26.
How severe is CVE-2021-26567?: High severity. CVSS v3 base score is 7.8 out of 10.