What is CVE-2025-43903?

CVE-2025-43903 is a medium-severity vulnerability in Freedesktop Poppler, classified under Improper Verification of Cryptographic Signature. CVSS score: 4.3/10. Published 2025-04-18.

How severe is CVE-2025-43903?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Freedesktop Poppler

CVE-2025-43903

NSSCryptoSignBackend.cc in Poppler before 25.04.0 does not verify the adbe.pkcs7.sha1 signatures on documents, resulting in potential signature forgeries.

EPSS: 0.001 (1.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N.

Affected products

Freedesktop Poppler — versions 0

Weakness classification (CWE)

CWE-347 — Improper Verification of Cryptographic Signature

References

cve@mitre.org (Patch)

Frequently asked questions

What is CVE-2025-43903?: CVE-2025-43903 is a medium-severity vulnerability in Freedesktop Poppler, classified under Improper Verification of Cryptographic Signature. CVSS score: 4.3/10. Published 2025-04-18.
How severe is CVE-2025-43903?: Medium severity. CVSS v3 base score is 4.3 out of 10.