CVE-2022-26899Network attack vector

User-assisted privilege elevation

Published Jun 29, 2023 · Updated Jul 8, 2025

Elevation of privilege in Microsoft Edge (Chromium-based) before 99.0.1150.46 allows remote attackers to gain privileges after user interaction. Microsoft has not published the affected component or the operation it performs incorrectly on crafted web content. The public record does not identify the privilege level gained or any ability to escape the browser sandbox.

CVSS severity6.3
Medium
EPSS probability0.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Elevation of privilege in Microsoft Edge (Chromium-based) before 99.0.1150.46 allows remote attackers to gain privileges after user interaction. Microsoft has not published the affected component or the operation it performs incorrectly on crafted web content. The public record does not identify the privilege level gained or any ability to escape the browser sandbox.

The record

CVE
CVE-2022-26899
Published
Jun 29, 2023
Updated
Jul 8, 2025
Vendor
Microsoft
Product
Microsoft Edge (Chromium-based)
Classifications
T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Jul 8, 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 <99.0.1150.46

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Microsoft Edge (Chromium-based)version=1.0.0 <99.0.1150.46

Published CVSS scores

6.3Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/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

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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