CVE-2021-36929

Local information disclosure after user interaction

Published Aug 26, 2021 · Updated Aug 10, 2026

Information disclosure in Microsoft Edge (Chromium-based) before 92.0.902.55 allows local users to access data after user interaction. Microsoft has not published the affected component or the operation that exposes data to untrusted input. Exploitation requires local access and user interaction; confidentiality is affected, with no reported data modification or service interruption.

CVSS severity6.3
Medium
EPSS probability3.19%
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 Edge (Chromium-based) before 92.0.902.55 allows local users to access data after user interaction. Microsoft has not published the affected component or the operation that exposes data to untrusted input. Exploitation requires local access and user interaction; confidentiality is affected, with no reported data modification or service interruption.

The record

CVE
CVE-2021-36929
Published
Aug 26, 2021
Updated
Aug 10, 2026
Vendor
Microsoft
Product
Microsoft Edge (Chromium-based)
Classifications
Unavailable
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 26, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 2026Record 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=1.0.0.0 <92.0.902.55

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Microsoft · Microsoft Edge (Chromium-based)version=1.0.0.0 <92.0.902.55

Published CVSS scores

6.3MicrosoftCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
4.3NVDAV:N/AC:M/Au:N/C:P/I:N/A:N
5.5NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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