CVE-2024-24691Network attack vector

Unauthenticated privilege escalation via Unicode handling

Published Feb 14, 2024 · Updated May 12, 2025

Improper Unicode input handling in Zoom clients and Meeting SDK for Windows allows remote attackers to escalate privileges over a network. Zoom identifies CWE-176 but does not disclose the affected component, malformed Unicode input, or validation operation that mishandles it. Exploitation requires no prior authentication but does require user interaction; success grants elevated privileges on the target Windows system.

CVSS severity9.6
Critical
EPSS probability1.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper Unicode input handling in Zoom clients and Meeting SDK for Windows allows remote attackers to escalate privileges over a network. Zoom identifies CWE-176 but does not disclose the affected component, malformed Unicode input, or validation operation that mishandles it. Exploitation requires no prior authentication but does require user interaction; success grants elevated privileges on the target Windows system.

The record

CVE
CVE-2024-24691
Published
Feb 14, 2024
Updated
May 12, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-176, T1068
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 14, 2024CVE publishedPublication date reported by the CVE source.
  2. May 12, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.6Zoom Video Communications, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
9.8NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/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-176Improper Handling of Unicode Encoding
T1068Exploitation for Privilege Escalation

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo