CVE-2023-28261

Local privilege escalation through undisclosed mechanism

Published Apr 27, 2023 · Updated Feb 28, 2025

Elevation of privilege in Microsoft Edge before 111.0.1661.54 allows local users to gain elevated privileges via unspecified vectors. Microsoft has not published the affected component or the incorrect operation that permits the privilege boundary to be crossed. The attack needs local execution but no prior privileges or user interaction, and it can disclose data and permit limited modification without affecting availability.

CVSS severity5.7
Medium
EPSS probability0.62%
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 before 111.0.1661.54 allows local users to gain elevated privileges via unspecified vectors. Microsoft has not published the affected component or the incorrect operation that permits the privilege boundary to be crossed. The attack needs local execution but no prior privileges or user interaction, and it can disclose data and permit limited modification without affecting availability.

The record

CVE
CVE-2023-28261
Published
Apr 27, 2023
Updated
Feb 28, 2025
Vendor
Microsoft
Product
Microsoft Edge (Chromium-based)
Classifications
CWE-269, T1068
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 28, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=1.0.0 <110.0.1587.78
  2. Affected versionversion=1.0.0 <111.0.1661.54

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Microsoft · Microsoft Edge (Chromium-based)version=1.0.0 <110.0.1587.78; version=1.0.0 <111.0.1661.54

Published CVSS scores

5.7Microsoft CorporationCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:L/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1068Exploitation for Privilege Escalation

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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