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).

Published: 2025-10-01 Last update: 2026-04-15 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-43718 is rated Low Risk (12.5/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.12%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-43718

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.03% 0.12% +0.09%
2 2025-10-02 — 0.03% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-43718

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.9 3.1 LOW
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 1.4 1.4 [email protected]

Weakness enumeration for CVE-2025-43718

OS Trackers for CVE-2025-43718

vendor priority summary link
alpine low CVE-2025-43718: 1 source package rows (poppler); 2 state rows across 1 repos (edge-main); fixed 0, open 2. https://security.alpinelinux.org/vuln/CVE-2025-43718
debian not yet assigned CVE-2025-43718 not yet assigned priority: Debian including 1 source packages (poppler), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. https://security-tracker.debian.org/tracker/CVE-2025-43718
redhat medium — https://access.redhat.com/security/cve/CVE-2025-43718
suse medium CVE-2025-43718 severity moderate: SUSE including 48 source package names (libpoppler-cpp0, libpoppler-cpp0-0.79.0-150200.3.46.1, …), 170 product×package rows across 31 product lines (SUSE Enterprise Storage 7.1, SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS, … (31 product lines)): Fixed 129, Known Not Affected 41. https://www.suse.com/security/cve/CVE-2025-43718/
ubuntu medium CVE-2025-43718 medium priority: Ubuntu including 1 source packages (poppler), 8 status rows across 8 suites (bionic, focal, jammy, noble, plucky, questing, upstream, xenial): released 5, needs-triage 3. https://ubuntu.com/security/CVE-2025-43718

Affected software / configurations for CVE-2025-43718

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2025-43718

cvelogic Threat Intelligence