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CVE-2025-43718

2.9 · LOW

Poppler 24.06.1 through 25.x before 25.04.0 allows stack consumption and a SIGSEGV via deeply nested structures within the metadata (such as GTS_PDFEVersion) of a PDF document, e.g., a regular expr…

Published Oct 1, 2025CWE-674EPSS 0.13%

Overview

CVE-2025-43718 is a low-severity vulnerability. It was published on October 1, 2025 and has a CVSS 3.1 base score of 2.9 (LOW).

This vulnerability has a CVSS 3.1 base score of 2.9, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

Poppler 24.06.1 through 25.x before 25.04.0 allows stack consumption and a SIGSEGV via deeply nested structures within the metadata (such as GTS_PDFEVersion) of a PDF document, e.g., a regular expression for a long pdfsubver string. This occurs in Dict::lookup, Catalog::getMetadata, and associated functions in PDFDoc, with deep recursion in the regex executor (std::__detail::_Executor).

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/ShadowByte1/CVE-Reports/blob/main/CVE-2025-43718.mdRefgitlab.freedesktop.org/poppler/poppler/-/commit/f54b815672117c250420787c8c006de98e8c7408

How CyberStrike helps

Frequently asked questions

What is CVE-2025-43718?

CVE-2025-43718 is a low-severity vulnerability. It was published on October 1, 2025 and has a CVSS 3.1 base score of 2.9 (LOW).

How severe is CVE-2025-43718?

This vulnerability has a CVSS 3.1 base score of 2.9, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-43718?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-43718?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-43718 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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