CVE-2022-23255

Unauthorized access to protected files

Published Feb 9, 2022 · Updated Jan 2, 2025

Authentication bypass in Microsoft OneDrive for Android before 6.46 allows physically proximate attackers to access protected files. Microsoft has not published the app component or operation that fails to enforce authentication when protected files are opened. Exploitation requires possession of an unlocked device, enabling unauthorized file access or alteration without disrupting service.

CVSS severity5.9
Medium
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Microsoft OneDrive for Android before 6.46 allows physically proximate attackers to access protected files. Microsoft has not published the app component or operation that fails to enforce authentication when protected files are opened. Exploitation requires possession of an unlocked device, enabling unauthorized file access or alteration without disrupting service.

The record

CVE
CVE-2022-23255
Published
Feb 9, 2022
Updated
Jan 2, 2025
Vendor
Microsoft
Product
Microsoft OneDrive for Android
Classifications
T1530
Attack vector
physical
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 9, 2022CVE publishedPublication date reported by the CVE source.
  2. Jan 2, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0 <6.46

What conditions does exploitation require?

Attack vectorphysical
Required privilegesauthenticated

What is affected?

Microsoft · Microsoft OneDrive for Androidversion=1.0 <6.46

Published CVSS scores

4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P
5.2Microsoft CorporationCVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C
6.8NIST NVDCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
5.9Microsoft CorporationCVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1530Data from Cloud Storage

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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