CVE-2020-12830

Name: CVE-2020-12830
Creator: NVD / NIST
Published: 2020-10-27T20:15:21.533+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.19%

Last modified Jun 17, 2026

CVE-2020-12830 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Addressed multiple stack buffer overflow vulnerabilities that could allow an attacker to carry out escalation of privileges through unauthorized remote code execution in Western Digital My Cloud devices before 5.04.114.. EPSS estimates a 3.19% chance of exploitation in the next 30 days.

Description

Addressed multiple stack buffer overflow vulnerabilities that could allow an attacker to carry out escalation of privileges through unauthorized remote code execution in Western Digital My Cloud devices before 5.04.114.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

3.19%

86.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Westerndigital	My Cloud Firmware	< 5.04.114

References

https://support.wdc.com/downloads.aspx?g=907&lang=enVendor Advisory
https://www.westerndigital.com/support/productsecurity/wdc-20007-my-cloud-firmware-version-5-04-114Vendor Advisory
https://support.wdc.com/downloads.aspx?g=907&lang=enVendor Advisory
https://www.westerndigital.com/support/productsecurity/wdc-20007-my-cloud-firmware-version-5-04-114Vendor Advisory

Timeline

Published: Oct 27, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-12830?

How severe is CVE-2020-12830?

CVE-2020-12830 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.19% probability of exploitation in the next 30 days.

How do I fix CVE-2020-12830?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-12830?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST