PatchTheCVECVE-2020-27744: An issue was discovered on Western Digital My Cloud NAS devices before 5.04.114
CVE-2020-27744 is a critical-severity flaw (CVSS 9.8) affecting my cloud firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
An issue was discovered on Western Digital My Cloud NAS devices before 5.04.114. They allow remote code execution with resultant escalation of privileges.
Why this priority
- Critical severity
- EPSS top 7%: very likely to be exploited
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 6.2% (top 7%) |
| CISA exploited list | No |
| Weakness | CWE-78 |
| Published | 2020-10-29 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2020-27744?
my cloud firmware: upgrade to 5.04.114. Exact commands for each OS are on this page.
Is CVE-2020-27744 being exploited?
CVE-2020-27744 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2020-27744 affect?
CVE-2020-27744 affects my cloud firmware. Severity is critical (CVSS 9.8). An issue was discovered on Western Digital My Cloud NAS devices before 5.04.114. They allow remote code execution with resultant escalation of privileges.
How urgent is CVE-2020-27744?
Priority 68/100. Critical severity; EPSS top 7%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action
Software pages
Western Digital vulnerabilities
Related CVEs
- CVE-2020-27160 CRITICAL 9.8 UPGRADE Addressed remote code execution vulnerability in AvailableApps.php that allowed escalation of privileges in We
- CVE-2020-27159 CRITICAL 9.8 UPGRADE Addressed remote code execution vulnerability in DsdkProxy.php due to insufficient sanitization and insufficie
- CVE-2020-27158 CRITICAL 9.8 UPGRADE Addressed remote code execution vulnerability in cgi_api.php that allowed escalation of privileges in Western
- CVE-2020-25765 CRITICAL 9.8 UPGRADE Addressed remote code execution vulnerability in reg_device.php due to insufficient validation of user input.i
- CVE-2020-12830 CRITICAL 9.8 UPGRADE Addressed multiple stack buffer overflow vulnerabilities that could allow an attacker to carry out escalation