What is CVE-2025-43718?

CVE-2025-43718 is a low-severity vulnerability in Freedesktop Poppler, classified under Uncontrolled Recursion. CVSS score: 2.9/10. Published 2025-10-01.

How severe is CVE-2025-43718?

Low severity. CVSS v3 base score is 2.9 out of 10.

Is CVE-2025-43718 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Freedesktop Poppler

CVE-2025-43718

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).

EPSS: 0.001 (2.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.9 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Freedesktop Poppler — versions 24.06.1

Weakness classification (CWE)

CWE-674 — Uncontrolled Recursion

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

Frequently asked questions

What is CVE-2025-43718?: CVE-2025-43718 is a low-severity vulnerability in Freedesktop Poppler, classified under Uncontrolled Recursion. CVSS score: 2.9/10. Published 2025-10-01.
How severe is CVE-2025-43718?: Low severity. CVSS v3 base score is 2.9 out of 10.
Is CVE-2025-43718 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.