CVE-2025-43718: freedesktop poppler Uncontrolled Recursion
Vulnerability summary
CVE-2025-43718 is a low (CVSS 2.9) Uncontrolled Recursion vulnerability in freedesktop poppler. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2.5% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 4 · Related 3Timeline
- 01-10-2025PublishedVulnerability first disclosed.
- 06-10-2025Last modifiedVulnerability information updated.
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).
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated2.9LowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
- OSV · DebianEcosystem advisory · calculated2.9LowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
- NVDNIST2.9LowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS trend
Probability
0.13%
Chance of exploitation in the next 30 days
Percentile
3%
Versus all other CVEs
30-day change
0.00 pp
From 0.13% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- poppler< 22.12.0-2+deb12u2 | < 25.03.0-5+deb13u3 | < 25.03.0-10
Freedesktop1 product
- poppler≥ 24.06.1, < 25.04.0
Ubuntu1 product
- popplerAll versions (No fix recorded) | < 25.03.0-10 | < 22.02.0-2ubuntu0.11 | < 24.02.0-1ubuntu9.7
3 vendors · 3 products