CVE-2024-29991Network attack vector

Security feature bypass

Published Apr 19, 2024 · Updated May 3, 2025

Code injection in Microsoft Edge (Chromium-based) before 124.0.2478.51 allows remote attackers to bypass a security feature. Microsoft has not published the affected component, the untrusted input involved, or the code-generation operation that mishandles it. Exploitation requires user interaction and high attack complexity; the public record does not identify the control bypassed or the resulting execution or data boundary.

CVSS severity5.0
Medium
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Microsoft Edge (Chromium-based) before 124.0.2478.51 allows remote attackers to bypass a security feature. Microsoft has not published the affected component, the untrusted input involved, or the code-generation operation that mishandles it. Exploitation requires user interaction and high attack complexity; the public record does not identify the control bypassed or the resulting execution or data boundary.

The record

CVE
CVE-2024-29991
Published
Apr 19, 2024
Updated
May 3, 2025
Vendor
Microsoft
Product
Microsoft Edge (Chromium-based)
Classifications
CWE-94
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 19, 2024CVE publishedPublication date reported by the CVE source.
  2. May 3, 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 <124.0.2478.51

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Microsoft Edge (Chromium-based)version=1.0.0 <124.0.2478.51

Published CVSS scores

5.0Microsoft CorporationCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/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 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

CWE-94Improper Control of Generation of Code ('Code Injection')

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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