Paper/Archive/CVE-2021-36226

CVE-2021-36226

mitre — Western Digital My Cloud devices before OS5 do not use cryptographically signed Firmware upgrade files.

EPSS 0.8%CVSS 9.8

critical.is priorityof 100

41

CVSS 9.8 (ADP, NVD agree)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 56.9.569 × 2011.4 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

Western Digital My Cloud devices before OS5 do not use cryptographically signed Firmware upgrade files.

Affected

ProductAffectedFixed inSource

n/an/a–CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

refkrebsonsecurity.com/2021/07/another-0-day-looms-for-many-western-digital-users refyoutube.com/watch?v=vsg9YgvGBec refgithub.com/pedrib/PoC/blob/master/advisories/Pwn2Own/Tokyo_2020/weekend_destroyer/weekend_destroyer.md