CVE-2023-36008

Code execution via undisclosed use-after-free

Published Nov 16, 2023 · Updated Oct 8, 2025

Use-after-free in Microsoft Edge (Chromium-based) allows attackers to execute code after local delivery and user interaction. Microsoft identifies the memory-lifetime error but has not disclosed the affected component, stale-object operation, or triggering input. Affected releases are Stable before 119.0.2151.72 and Extended Stable before 118.0.2088.109; no prior privileges are required, and execution can expose data, make limited changes, or interrupt the browser.

CVSS severity6.6
Medium
EPSS probability0.59%
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) allows attackers to execute code after local delivery and user interaction. Microsoft identifies the memory-lifetime error but has not disclosed the affected component, stale-object operation, or triggering input. Affected releases are Stable before 119.0.2151.72 and Extended Stable before 118.0.2088.109; no prior privileges are required, and execution can expose data, make limited changes, or interrupt the browser.

The record

CVE
CVE-2023-36008
Published
Nov 16, 2023
Updated
Oct 8, 2025
Vendor
Microsoft
Product
Microsoft Edge (Chromium-based)
Classifications
CWE-416, T1204
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 16, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 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 <118.0.2088.109
  2. Affected versionversion=1.0.0 <119.0.2151.72

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Microsoft · Microsoft Edge (Chromium-based)version=1.0.0 <118.0.2088.109; version=1.0.0 <119.0.2151.72

Published CVSS scores

6.6MicrosoftCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L

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-416Use After Free
T1204User 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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