How severe is CVE-2025-71382?

CVE-2025-71382 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-71382 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-71382?

CVE-2025-71382 affects Artifex Mupdf. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-71382?

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

Does CVE-2025-71382 have an EU (EUVD) identifier?

Yes. CVE-2025-71382 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-210322.

When was CVE-2025-71382 published?

CVE-2025-71382 was published on 2026-06-23 and last updated on 2026-06-26.

CVE-2025-71382

CVE-2025-71382 is a medium-severity vulnerability in Artifex Mupdf with a CVSS 3.x base score of 6.5. 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-674.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 7.1
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-210322
Weakness: CWE-674
Affected product: Artifex Mupdf
Published: 2026-06-23
Last modified: 2026-06-26

Description

MuPDF before 1.27.0-rc1 contains an uncontrolled recursion vulnerability in the EPUB CSS rendering engine that allows remote attackers to cause a denial of service by supplying a maliciously crafted EPUB file with deeply nested HTML elements and inline CSS styles. The function value_from_inheritable_property() in css-apply.c recurses through the CSS property inheritance chain without a depth limit, exhausting the process stack and causing a crash in any application using MuPDF for EPUB rendering.

Frequently asked questions

What is CVE-2025-71382?: MuPDF before 1.27.0-rc1 contains an uncontrolled recursion vulnerability in the EPUB CSS rendering engine that allows remote attackers to cause a denial of service by supplying a maliciously crafted EPUB file with deeply nested HTML elements and inline CSS styles. The function value_from_inheritable_property() in css-apply.c recurses through the CSS property inheritance chain without a depth limit, exhausting the process stack and causing a crash in any application using MuPDF for EPUB rendering.
How severe is CVE-2025-71382?: CVE-2025-71382 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-71382 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-71382?: CVE-2025-71382 affects Artifex Mupdf. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-71382?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-71382 have an EU (EUVD) identifier?: Yes. CVE-2025-71382 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-210322.
When was CVE-2025-71382 published?: CVE-2025-71382 was published on 2026-06-23 and last updated on 2026-06-26.

References

Affected products (1)

cpe:2.3:a:artifex:mupdf:*:*:*:*:*:*:*:*

More vulnerabilities in Artifex Mupdf

CVE-2019-7321 — Critical (CVSS 9.8): Usage of an uninitialized variable in the function fz_load_jpeg in Artifex MuPDF 1.14 can result in a heap overflow…
CVE-2016-6525 — Critical (CVSS 9.8): Heap-based buffer overflow in the pdf_load_mesh_params function in pdf/pdf-shade.c in MuPDF allows remote attackers to…
CVE-2011-0341 — Critical (CVSS 9.3): Stack-based buffer overflow in the pdfmoz_onmouse function in apps/mozilla/moz_main.c in the MuPDF plug-in 2008.09.02…
CVE-2020-16600 — High (CVSS 7.8): A Use After Free vulnerability exists in Artifex Software, Inc. MuPDF library 1.17.0-rc1 and earlier when a valid page…
CVE-2012-5340 — High (CVSS 7.8): SumatraPDF 2.1.1/MuPDF 1.0 allows remote attackers to cause an Integer Overflow in the lex_number() function via a…
CVE-2019-13290 — High (CVSS 7.8): Artifex MuPDF 1.15.0 has a heap-based buffer overflow in fz_append_display_node located at fitz/list-device.c, allowing…

All CVEs affecting Artifex Mupdf →

Other CWE-674 (Uncontrolled Recursion) vulnerabilities

CVE-2026-43185 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix signededness bug in…
CVE-2023-51803 — Critical (CVSS 9.8): LinuxServer.io Heimdall before 2.5.7 does not prevent use of icons that have non-image data such as the "<?php ?>"…
CVE-2021-41752 — Critical (CVSS 9.8): Stack overflow vulnerability in Jerryscript before commit e1ce7dd7271288be8c0c8136eea9107df73a8ce2 on Oct 20, 2021 due…
CVE-2018-1000618 — Critical (CVSS 9.8): EOSIO/eos eos version after commit f1545dd0ae2b77580c2236fdb70ae7138d2c7168 contains a stack overflow vulnerability in…
CVE-2025-10728 — Critical (CVSS 9.4): When the module renders a Svg file that contains a <pattern> element, it might end up rendering it recursively leading…
CVE-2026-40324 — Critical (CVSS 9.1): Hot Chocolate is an open-source GraphQL server. Prior to versions 12.22.7, 13.9.16, 14.3.1, and 15.1.14, Hot…

Browse all CWE-674 (Uncontrolled Recursion) vulnerabilities →