How severe is CVE-2025-43903?

CVE-2025-43903 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2025-43903 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-43903?

CVE-2025-43903 affects Freedesktop Poppler. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-43903?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-43903 have an EU (EUVD) identifier?

Yes. CVE-2025-43903 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-11892.

When was CVE-2025-43903 published?

CVE-2025-43903 was published on 2025-04-18 and last updated on 2026-06-17.

CVE-2025-43903

CVE-2025-43903 is a medium-severity vulnerability in Freedesktop Poppler with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-347.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-11892
Weakness: CWE-347
Affected product: Freedesktop Poppler
Published: 2025-04-18
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is 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.
How severe is CVE-2025-43903?: CVE-2025-43903 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2025-43903 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-43903?: CVE-2025-43903 affects Freedesktop Poppler. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-43903?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-43903 have an EU (EUVD) identifier?: Yes. CVE-2025-43903 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-11892.
When was CVE-2025-43903 published?: CVE-2025-43903 was published on 2025-04-18 and last updated on 2026-06-17.

References

https://gitlab.freedesktop.org/poppler/poppler/-/commit/f1b9c830f145a0042e853d6462b2f9ca4016c669

Affected products (1)

cpe:2.3:a:freedesktop:poppler:*:*:*:*:*:*:*:*

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