CVE-2025-43718Public exploit

Application crash via recursive metadata regex evaluation

Published Oct 1, 2025 · Updated Oct 6, 2025

Uncontrolled recursion in Poppler 24.06.1 through 25.03.0 allows local users to crash PDF-processing applications via a crafted PDF. The metadata path through Dict::lookup, Catalog::getMetadata, and PDFDoc passes an attacker-controlled GTS_PDFEVersion string into std::__detail::_Executor without bounding recursive regular-expression evaluation. Processing the crafted document exhausts the stack and terminates the calling utility or application with SIGSEGV; no confidentiality or integrity impact is reported.

CVSS severity2.9
Low
EPSS probability0.13%
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 Poppler 24.06.1 through 25.03.0 allows local users to crash PDF-processing applications via a crafted PDF. The metadata path through Dict::lookup, Catalog::getMetadata, and PDFDoc passes an attacker-controlled GTS_PDFEVersion string into std::__detail::_Executor without bounding recursive regular-expression evaluation. Processing the crafted document exhausts the stack and terminates the calling utility or application with SIGSEGV; no confidentiality or integrity impact is reported.

The record

CVE
CVE-2025-43718
Published
Oct 1, 2025
Updated
Oct 6, 2025
Vendor
Libslirp Project
Product
Poppler
Classifications
CWE-674, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 6, 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=24.06.1 <25.04.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Libslirp Project · Popplerversion=24.06.1 <25.04.0

Published CVSS scores

2.9MITRECVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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

CWE-674Uncontrolled Recursion
T1499.004Application or System Exploitation Flood

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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