VulnerabilityModified
CVE-2021-3310
This can lead to code execution and information disclosure (by reading local files).
HIGH 7.8EPSS 1.01%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.01%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Western Digital My Cloud OS 5 devices before 5.10.122 mishandle Symbolic Link Following on SMB and AFP shares. This can lead to code execution and information disclosure (by reading local files).
- 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
- 1.01% probability · 61th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-59
- Affected
- westerndigital/my cloud os
- Source
- cve@mitre.org
References
- https://www.westerndigital.com/support/productsecurity/wdc-21002-my-cloud-firmware-version-5-10-122Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-277/Third Party Advisory
- https://www.westerndigital.com/support/productsecurity/wdc-21002-my-cloud-firmware-version-5-10-122Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-277/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.