CVE-2022-38046Network attack vector

Unauthenticated disclosure of cross-cloud refresh tokens

Published Oct 11, 2022 · Updated Jan 2, 2025

Information disclosure in Microsoft Web Account Manager on affected Windows releases allows remote attackers to view cross-cloud refresh tokens. Microsoft states that one cloud can expose unbound refresh tokens issued by another cloud, but it has not published the faulty operation or code locus. No authentication or user interaction is required, and the reported consequence is limited to confidentiality.

CVSS severity7.5
High
EPSS probability1.90%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Microsoft Web Account Manager on affected Windows releases allows remote attackers to view cross-cloud refresh tokens. Microsoft states that one cloud can expose unbound refresh tokens issued by another cloud, but it has not published the faulty operation or code locus. No authentication or user interaction is required, and the reported consequence is limited to confidentiality.

The record

CVE
CVE-2022-38046
Published
Oct 11, 2022
Updated
Jan 2, 2025
Vendor
Microsoft
Product
Windows Server 2019
Classifications
T1528
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 11, 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=10.0.17763.0 <10.0.17763.3532

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.3532
Microsoft · Windows 10 Version 21H1version=10.0.0 <10.0.19043.2130
Microsoft · Windows 11 version 21H2version=10.0.0 <10.0.22000.1098
Microsoft · Windows 10 Version 21H2version=10.0.19043.0 <10.0.19044.2130
Microsoft · Windows 10 Version 20H2version=10.0.0 <10.0.19042.2130
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.3532
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.1129
Microsoft · Windows 10 Version 1809version=10.0.0 <10.0.17763.3532; version=10.0.17763.0 <10.0.17763.3532

Published CVSS scores

7.5Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1528Steal Application Access Token

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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