CVE-2022-22021Network attack vector

User-triggered code execution via undisclosed race condition

Published Jun 15, 2022 · Updated Jan 2, 2025

Remote code execution in Microsoft Edge (Chromium-based) before 102.0.1245.39 allows remote attackers to execute code via crafted web content. Microsoft has not disclosed the affected component or erroneous operation, but exploitation requires winning a race condition. A user must open attacker-controlled content; successful exploitation can escape the browser sandbox and run code on the affected system.

CVSS severity8.3
High
EPSS probability2.99%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote code execution in Microsoft Edge (Chromium-based) before 102.0.1245.39 allows remote attackers to execute code via crafted web content. Microsoft has not disclosed the affected component or erroneous operation, but exploitation requires winning a race condition. A user must open attacker-controlled content; successful exploitation can escape the browser sandbox and run code on the affected system.

The record

CVE
CVE-2022-22021
Published
Jun 15, 2022
Updated
Jan 2, 2025
Vendor
Microsoft
Product
Microsoft Edge (Chromium-based)
Classifications
T1203, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 15, 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=1.0.0 <102.0.1245.39

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Microsoft Edge (Chromium-based)version=1.0.0 <102.0.1245.39

Published CVSS scores

5.1NIST NVDAV:N/AC:H/Au:N/C:P/I:P/A:P
7.2Microsoft CorporationCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
8.3Microsoft CorporationCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

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

T1203Exploitation for Client Execution
T1189Drive-by Compromise

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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