CVE-2023-36727Network attack vector

Spoofing via undisclosed content handling flaw

Published Sep 15, 2023 · Updated Oct 30, 2025

Spoofing in Microsoft Edge (Chromium-based) before 117.0.2045.31 allows remote attackers to present deceptive content after user interaction. Microsoft has not published the affected component or the operation that mishandles attacker-controlled content, so the precise spoofing mechanism remains undisclosed. Successful exploitation can expose limited information and alter displayed content; no browser availability impact is reported.

CVSS severity6.1
Medium
EPSS probability1.04%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Spoofing in Microsoft Edge (Chromium-based) before 117.0.2045.31 allows remote attackers to present deceptive content after user interaction. Microsoft has not published the affected component or the operation that mishandles attacker-controlled content, so the precise spoofing mechanism remains undisclosed. Successful exploitation can expose limited information and alter displayed content; no browser availability impact is reported.

The record

CVE
CVE-2023-36727
Published
Sep 15, 2023
Updated
Oct 30, 2025
Vendor
Microsoft
Product
Microsoft Edge (Chromium-based)
Classifications
Unavailable
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 15, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 30, 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 <117.0.2045.31

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Microsoft Edge (Chromium-based)version=1.0.0 <117.0.2045.31

Published CVSS scores

6.1Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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