CVE-2024-7866

Process crash via recursive pattern-resource object loop

Published Aug 15, 2024 · Updated Aug 16, 2024

Uncontrolled recursion in Xpdf 4.05 and earlier allows attackers to crash a PDF-processing process via a crafted PDF pattern resource. A cyclic PDF object reference in a pattern resource is followed without loop detection, causing infinite recursion until the process exhausts its stack. Processing the crafted file is required, and the documented consequence is a process crash rather than data disclosure or modification.

CVSS severity2.1
Low
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled recursion in Xpdf 4.05 and earlier allows attackers to crash a PDF-processing process via a crafted PDF pattern resource. A cyclic PDF object reference in a pattern resource is followed without loop detection, causing infinite recursion until the process exhausts its stack. Processing the crafted file is required, and the documented consequence is a process crash rather than data disclosure or modification.

The record

CVE
CVE-2024-7866
Published
Aug 15, 2024
Updated
Aug 16, 2024
Vendor
Glyph & Cog, LLC
Product
Xpdf
Classifications
CWE-674
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 16, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=4.05

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Glyph & Cog, LLC · Xpdfversion=0 <=4.05

Published CVSS scores

2.1Glyph & Cog, LLCCVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-674Uncontrolled Recursion

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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