Poppler 24.06.1-25.03: SEGV via deep metadata recursion (GTS_PDFEVersion)
CVE-2025-43718 Published on October 1, 2025
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).
Weakness Type
What is a Stack Exhaustion Vulnerability?
The product does not properly control the amount of recursion which takes place, consuming excessive resources, such as allocated memory or the program stack.
CVE-2025-43718 has been classified to as a Stack Exhaustion vulnerability or weakness.
Products Associated with CVE-2025-43718
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Affected Versions
freedesktop Poppler:- Version 24.06.1 and below 25.04.0 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.