CVE-2022-36561Public exploit

Process crash in AcroForm handling

Published Aug 30, 2022 · Updated Aug 3, 2024

A segmentation fault in Xpdf 4.04 allows context-dependent attackers to crash an Xpdf utility by supplying a crafted PDF file. Processing reaches AcroForm.cc line 538, where the public record identifies the fault but does not disclose the invalid operation. A user or automated workflow must process the file with an affected utility; the supported consequence is process termination and service interruption.

CVSS severity5.5
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A segmentation fault in Xpdf 4.04 allows context-dependent attackers to crash an Xpdf utility by supplying a crafted PDF file. Processing reaches AcroForm.cc line 538, where the public record identifies the fault but does not disclose the invalid operation. A user or automated workflow must process the file with an affected utility; the supported consequence is process termination and service interruption.

The record

CVE
CVE-2022-36561
Published
Aug 30, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1499.004, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 30, 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

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 vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1499.004Application or System Exploitation
T1204.002Malicious File

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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