CVE-2024-38164Network attack vector

Privilege escalation via malicious link interaction

Published Jul 23, 2024 · Updated Feb 10, 2026

Improper access control in Microsoft GroupMe allows remote attackers to elevate privileges by convincing a user to follow a malicious link. Microsoft has not disclosed the affected access-control locus or the incorrect operation performed when the link is opened. Exploitation requires user interaction; the published record reports privilege elevation with confidentiality, integrity, and availability impact.

CVSS severity9.6
Critical
EPSS probability0.95%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Microsoft GroupMe allows remote attackers to elevate privileges by convincing a user to follow a malicious link. Microsoft has not disclosed the affected access-control locus or the incorrect operation performed when the link is opened. Exploitation requires user interaction; the published record reports privilege elevation with confidentiality, integrity, and availability impact.

The record

CVE
CVE-2024-38164
Published
Jul 23, 2024
Updated
Feb 10, 2026
Vendor
Microsoft
Product
GroupMe
Classifications
CWE-284, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 23, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 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=-

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · GroupMeversion=-

Published CVSS scores

9.6Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
8.8NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/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 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-284Improper Access Control
T1204.001User Execution: Malicious Link

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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