How severe is CVE-2025-57248?

CVE-2025-57248 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-57248 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-57248?

CVE-2025-57248 affects Sumatrapdfreader Sumatrapdf. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-57248?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-57248 have an EU (EUVD) identifier?

Yes. CVE-2025-57248 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29204.

When was CVE-2025-57248 published?

CVE-2025-57248 was published on 2025-09-15 and last updated on 2026-06-17.

CVE-2025-57248

CVE-2025-57248 is a high-severity vulnerability in Sumatrapdfreader Sumatrapdf with a CVSS 3.x base score of 7.3. 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-476.

Key facts

Severity: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-29204
Weakness: CWE-476
Affected product: Sumatrapdfreader Sumatrapdf
Published: 2025-09-15
Last modified: 2026-06-17

Description

A null pointer dereference vulnerability was discovered in SumatraPDF 3.5.2 during the processing of a crafted .djvu file. When the file is opened, the application crashes inside libmupdf.dll, specifically in the DataPool::has_data() function.

Frequently asked questions

What is CVE-2025-57248?: A null pointer dereference vulnerability was discovered in SumatraPDF 3.5.2 during the processing of a crafted .djvu file. When the file is opened, the application crashes inside libmupdf.dll, specifically in the DataPool::has_data() function.
How severe is CVE-2025-57248?: CVE-2025-57248 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-57248 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-57248?: CVE-2025-57248 affects Sumatrapdfreader Sumatrapdf. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-57248?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-57248 have an EU (EUVD) identifier?: Yes. CVE-2025-57248 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29204.
When was CVE-2025-57248 published?: CVE-2025-57248 was published on 2025-09-15 and last updated on 2026-06-17.

References

https://github.com/sumatrapdfreader/sumatrapdf/issues/5035

Affected products (1)

cpe:2.3:a:sumatrapdfreader:sumatrapdf:3.5.2:*:*:*:*:*:*:*

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