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Fencer Vulns
medium 6.5

CVE-2025-46206 json

An issue in Artifex mupdf 1.25.6, 1.25.5 allows a remote attacker to cause a denial of service via an infinite recursion in the `mutool cle…

published 2025-08-04 15 mo ago modified 2026-07-05 4 mo ago also EUVD-2025-23520

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

An issue in Artifex mupdf 1.25.6, 1.25.5 allows a remote attacker to cause a denial of service via an infinite recursion in the `mutool clean` utility. When processing a crafted PDF file containing cyclic /Next references in the outline structure, the `strip_outline()` function enters infinite recursion

Patch / fix

  • mupdf Debian 14 1.25.1+ds1-7

debian advisories DEBIAN-CVE-2025-46206

  • mupdf Ubuntu Pro 18.04 LTS 1.12.0+ds1-1ubuntu0.1~esm2
  • mupdf Ubuntu Pro 20.04 LTS 1.16.1+ds1-1ubuntu1+esm2
  • mupdf Ubuntu Pro 22.04 LTS 1.19.0+ds1-2ubuntu0.1~esm1
  • mupdf Ubuntu Pro 24.04 LTS 1.23.10+ds1-1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2025-46206

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-46206 updated cvss 2.5

mupdf: Mupdf uncontrolled recursion

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
15 mo ago

Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/Landw-hub/CVE-2025-46206 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.