CVE-2022-24198Public exploitNetwork attack vector

PDF-processing interruption via unchecked array index

Published Feb 1, 2022 · Updated Aug 3, 2024

Out-of-bounds array access in iText 7.1.17 allows attackers to interrupt PDF processing with a crafted PDF file. ARCFOUREncryption.encryptARCFOUR uses a PDF-derived array index without validating its bounds, causing Java to throw a catchable runtime exception. Processing attacker-supplied PDF input is required; iText confirms the exception but disputes that it is exploitable or constitutes a denial of service.

CVSS severity6.5
Medium
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds array access in iText 7.1.17 allows attackers to interrupt PDF processing with a crafted PDF file. ARCFOUREncryption.encryptARCFOUR uses a PDF-derived array index without validating its bounds, causing Java to throw a catchable runtime exception. Processing attacker-supplied PDF input is required; iText confirms the exception but disputes that it is exploitable or constitutes a denial of service.

The record

CVE
CVE-2022-24198
Published
Feb 1, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-125
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 1, 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

6.5GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/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.

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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 exploitPublished

Weakness, pattern, technique

CWE-125Out-of-bounds Read

Public exploit references

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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