High severity7.8NVD Advisory· Published Mar 10, 2021· Updated Jun 17, 2026
CVE-2021-3310
CVE-2021-3310
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).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- Western Digital/My Cloud OS 5description
- Range: <5.10.122
Patches
Vulnerability mechanics
References
2- www.westerndigital.com/support/productsecurity/wdc-21002-my-cloud-firmware-version-5-10-122nvdVendor Advisory
- www.zerodayinitiative.com/advisories/ZDI-21-277/nvdThird Party Advisory
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