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CVE-2018-17153: It was discovered that the Western Digital My Cloud device before 2.30.196 is affected by an authentication by

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CRITICAL 9.8REMOTEUPGRADEUPGRADEUPGRADE

CVE-2018-17153 is a critical-severity flaw (CVSS 9.8) affecting my cloud wdbctl0020hwt firmware, my cloud pr4100, my cloud pr2100 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

It was discovered that the Western Digital My Cloud device before 2.30.196 is affected by an authentication bypass vulnerability. An unauthenticated attacker can exploit this vulnerability to authenticate as an admin user without needing to provide a password, thereby gaining full control of the device. (Whenever an admin logs into My Cloud, a server-side session is created that is bound to the user's IP address. After the session is created, it

Why this priority

  • Critical severity
  • EPSS top 1%: 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 score9.8 (Critical)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance86.6% (top 1%)
CISA exploited listNo
WeaknessCWE-287
Published2018-09-18
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: western digital

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

western digital my cloud wdbctl0020hwt firmware UPGRADE
Affected: < 2.30.196
Fixed in: 2.30.196
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
western digital my cloud pr4100 UPGRADE
Affected: < 2.30.196
Fixed in: 2.30.196
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
western digital my cloud pr2100 firmware UPGRADE
Affected: < 2.30.196
Fixed in: 2.30.196
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
western digital my cloud mirror gen 2 firmware UPGRADE
Affected: < 2.30.196
Fixed in: 2.30.196
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
western digital my cloud mirror firmware UPGRADE
Affected: < 2.30.196
Fixed in: 2.30.196
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
western digital my cloud ex4100 UPGRADE
Affected: < 2.30.196
Fixed in: 2.30.196
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Verify at the official source NVD · CVE Program · Report a problem with this page
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-2018-17153?

my cloud wdbctl0020hwt firmware: upgrade to 2.30.196; my cloud pr4100: upgrade to 2.30.196; my cloud pr2100 firmware: upgrade to 2.30.196. Exact commands for each OS are on this page.

Is CVE-2018-17153 being exploited?

CVE-2018-17153 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-2018-17153 affect?

CVE-2018-17153 affects my cloud wdbctl0020hwt firmware, my cloud pr4100, my cloud pr2100 firmware. Severity is critical (CVSS 9.8). It was discovered that the Western Digital My Cloud device before 2.30.196 is affected by an authentication bypass vulnerability. An unauthenticated attacker can exploit this vulnerability to authenticate as an admin user without needing to

How urgent is CVE-2018-17153?

Priority 69/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Western Digital vulnerabilities

References

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