CVE-2023-36741Network attack vector

Privilege escalation via use-after-free

Published Aug 26, 2023 · Updated Aug 10, 2026

Use-after-free in Microsoft Edge (Chromium-based) before 116.0.1938.62 allows remote attackers to elevate privileges after user interaction. Microsoft identifies the weakness class but has not disclosed the affected code locus or the invalid object-lifetime operation. A target must open attacker-controlled content, and Microsoft has not identified the resulting privilege level or affected resources.

CVSS severity8.3
High
EPSS probability2.06%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Microsoft Edge (Chromium-based) before 116.0.1938.62 allows remote attackers to elevate privileges after user interaction. Microsoft identifies the weakness class but has not disclosed the affected code locus or the invalid object-lifetime operation. A target must open attacker-controlled content, and Microsoft has not identified the resulting privilege level or affected resources.

The record

CVE
CVE-2023-36741
Published
Aug 26, 2023
Updated
Aug 10, 2026
Vendor
Microsoft
Product
Microsoft Edge (Chromium-based)
Classifications
CWE-416, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 26, 2023CVE 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 <116.0.1938.62

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Microsoft Edge (Chromium-based)version=1.0.0.0 <116.0.1938.62

Published CVSS scores

8.3Microsoft CorporationCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
7.5NIST NVDCVSS:3.1/AV:N/AC:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
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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