VulnerabilityModified
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.
HIGH 7.8EPSS 1.13%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.13% probability · 65th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-121, CWE-787
- Affected
- synology/diskstation manager · synology/vs960hd firmware · synology/skynas firmware · synology/diskstation manager unified controller · faad2 project/faad2
- Source
- security@synology.com
References
- https://github.com/knik0/faad2/commit/720f7004d6c4aabee19aad16e7c456ed76a3ebfaPatch
- https://www.synology.com/security/advisory/Synology_SA_20_26Vendor Advisory
- https://github.com/knik0/faad2/commit/720f7004d6c4aabee19aad16e7c456ed76a3ebfaPatch
- https://www.synology.com/security/advisory/Synology_SA_20_26Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.