CVE-2022-27492

Remote code execution via crafted video underflow

Published Sep 23, 2022 · Updated May 22, 2025

Integer underflow in Meta WhatsApp mobile apps before 2.22.16.2 on Android and before 2.22.15.9 on iOS allows remote attackers to execute code. The Video File Handler performs an undisclosed arithmetic operation that underflows while processing attacker-controlled video data. Recipient playback is required; successful exploitation executes code in the application's context, but Meta has not published the affected function or calculation.

CVSS severity7.8
High
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer underflow in Meta WhatsApp mobile apps before 2.22.16.2 on Android and before 2.22.15.9 on iOS allows remote attackers to execute code. The Video File Handler performs an undisclosed arithmetic operation that underflows while processing attacker-controlled video data. Recipient playback is required; successful exploitation executes code in the application's context, but Meta has not published the affected function or calculation.

The record

CVE
CVE-2022-27492
Published
Sep 23, 2022
Updated
May 22, 2025
Vendor
Meta
Product
WhatsApp Messenger
Classifications
CWE-191, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 23, 2022CVE publishedPublication date reported by the CVE source.
  2. May 22, 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=unspecified <2.22.16.2
  2. Affected versionversion=unspecified <v2.22.15.9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Meta · WhatsApp Messengerversion=unspecified <2.22.16.2; version=unspecified <v2.22.15.9
Meta · WhatsApp Business Appversion=unspecified <2.22.16.2; version=unspecified <v2.22.15.9

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-191Integer Underflow (Wrap or Wraparound)
T1204.002User Execution: Malicious File

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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