Skip to content
Noroxi
NVD / CVE Program· CNA WDC PSIRT

CVE-2023-22814: Authentication Bypass issue in My Cloud OS 5 devices

CriticalCVSS 9.8 · v3.1—No exploit No fix recorded

Noroxi assessment

Priority: Monitor (action score 39/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.68% (FIRST EPSS); higher than 53.1% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • According to the record, no fixed version is available yet.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

An authentication bypass issue via spoofing was discovered in the token-based authentication mechanism that could allow an attacker to carry out an impersonation attack. This issue affects My Cloud OS 5 devices: before 5.26.202.

Published
Jun 30, 2023
Updated
Jun 17, 2026
EPSS
0.6% · 53th percentile

Report tools

JSON

Action score

39

Monitor

Low priority for now.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.6%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
9.8
CNA · WDC PSIRT
10.0
0.2 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2023-22814

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits every 10 minutes on paid plans, on the hour on the free plan.

Your free account also gets you

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools, at most 30 a day (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for westerndigital records
Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
westerndigitalmy cloud os
westerndigitalmy cloud
westerndigitalmy cloud dl2100
westerndigitalmy cloud dl4100
westerndigitalmy cloud ex2 ultra
westerndigitalmy cloud ex2100
westerndigitalmy cloud ex4100
westerndigitalmy cloud mirror g2
westerndigitalmy cloud pr2100
westerndigitalmy cloud pr4100
westerndigitalwd cloud

Versions reported by the vendor

Affected version ranges reported by the assigning authority (WDC PSIRT). Independent of NVD's CPE analysis and usually ahead of it.

  • Western Digital My Cloud OS 5

    • before 5.26.202affected

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • westerndigital my cloud os5.02.104 and later · before 5.26.202

Same product

westerndigital: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-29842Command Injection Vulnerability in Western Digital My Cloud devices
    40Plan
  • CVE-2022-22994Insufficient Verification of Data Authenticity Remote Code Execution Vulnerability on Western Digital My Cloud devices.
    40Plan
  • CVE-2022-22992Command Injection Remote Code Execution vulnerability on Western Digital My Cloud devices.
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2022-29840May 10, 2023 · Server Side Request Forgery Vulnerability in Western Digital My Cloud Devices
    22Monitor
  • ← EarlierCVE-2023-22815Jun 30, 2023 · Post-authentication remote command injection vulnerability on Western Digital My Cloud OS 5 devices
    26Monitor
  • ← EarlierCVE-2023-22816Jun 30, 2023 · Limited Post-Authentication Remote Command Injection in My Cloud Products
    35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

  • CVE-2023-228160 days apartLimited Post-Authentication Remote Command Injection in My Cloud Products
    35Monitor
  • CVE-2023-228150 days apartPost-authentication remote command injection vulnerability on Western Digital My Cloud OS 5 devices
    26Monitor
  • CVE-2022-2984051 days apartServer Side Request Forgery Vulnerability in Western Digital My Cloud Devices
    22Monitor

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-290 · Authentication Bypass by Spoofing

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records