CVE-2022-30557Network attack vector

Application crash via miscompiled Unsigned32 result

Published May 11, 2022 · Updated Aug 3, 2024

Type confusion in Foxit PDF Reader and PDF Editor before 11.2.2 allows remote attackers to crash the application via JavaScript. The embedded V8 engine improperly compiles an Unsigned32 result during execution of certain JavaScript, creating a type mismatch that terminates the process. Triggering requires JavaScript execution in an affected Windows application, and the documented consequence is a crash rather than code execution or data access.

CVSS severity7.5
High
EPSS probability4.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Type confusion in Foxit PDF Reader and PDF Editor before 11.2.2 allows remote attackers to crash the application via JavaScript. The embedded V8 engine improperly compiles an Unsigned32 result during execution of certain JavaScript, creating a type mismatch that terminates the process. Triggering requires JavaScript execution in an affected Windows application, and the documented consequence is a crash rather than code execution or data access.

The record

CVE
CVE-2022-30557
Published
May 11, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-843, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 11, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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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

7.5NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.0NIST National Vulnerability DatabaseAV:N/AC:L/Au:N/C:N/I:N/A:P

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

CWE-843Access of Resource Using Incompatible Type ('Type Confusion')
T1499Endpoint Denial of Service

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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