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Fencer Vulns
critical 9.4

CVE-2025-10729 json

Use-after-free vulnerability in Qt SVG qsvghandler.cpp allows denial of service via crafted SVG

published 2025-10-03 13 mo ago modified 2026-10-08 31 d ago also EUVD-2025-32489

cvss
9.4
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits
0
none known

Summary

The module will parse a <pattern> node which is not a child of a structural node. The node will be deleted after creation but might be accessed later leading to a use after free.

Patch / fix

  • qt6-svg Debian 14 6.10.2-5

debian advisories DEBIAN-CVE-2025-10729

  • qt6-qtsvg RHEL 10.1 6.9.1-2.el10_1.1
  • qt6-qtsvg-examples RHEL 10.1 6.9.1-2.el10_1.1
  • qt6-qtsvg RHEL 10.0 6.8.1-1.el10_0.1
  • qt6-qtsvg-examples RHEL 10.0 6.8.1-1.el10_0.1

red hat advisories RHSA-2025:21037RHSA-2025:19772

  • qt6-svg SLES for SAP applications 16.0, SLES 16.0 6.9.1-160000.3.1

suse advisories SUSE-SU-2026:23305-1

  • qt6-svg openSUSE Leap 16.0 6.9.1-160000.3.1
  • qt6-svg openSUSE Tumbleweed 6.10.0-1.1

opensuse advisories openSUSE-SU-2026:21626-1openSUSE-SU-2025:15630-1

  • qt6-qtsvg AlmaLinux 10 6.8.1-1.el10_0.1
  • qt6-qtsvg-examples AlmaLinux 10 6.8.1-1.el10_0.1

almalinux advisories ALSA-2025:19772

  • qt6-qtsvg Rocky Linux 10 6.9.1-2.el10_1.1
  • qt6-qtsvg Rocky Linux 10 6.8.1-1.el10_0.1

rocky linux advisories RLSA-2025:21037RLSA-2025:19772

  • qtsvg Azure Linux 3.0 6.6.1-3
  • qt5-qtsvg CBL-Mariner 2.0 5.12.11-7

azure linux advisories AZL-68199AZL-68208

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

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-2025-10729 updated cvss 8.6

qtsvg: Use-after-free vulnerability in Qt SVG

  • Red Hat Enterprise Linux 7 qt5-qtsvg, qt5-qtsvg-examples
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 10) qt6-qtsvg 6.8.1-1.el10_0.1, qt6-qtsvg 6.9.1-2.el10_1.1 Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) qt6-qtsvg-examples 6.8.1-1.el10_0.1, qt6-qtsvg-examples 6.9.1-2.el10_1.1
    fixed: vendor fix RHSA-2025:19772
  • Red Hat Enterprise Linux 8 qt5-qtsvg, qt5-qtsvg-examples Red Hat Enterprise Linux 9 qt5-qtsvg, qt5-qtsvg-examples
    not affected: component 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
none
Automatable
no
Technical impact
total
Assessed
13 mo ago

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 9.4 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:P/RE:H/U:Red
CNA 4.0 9.4 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:X/R:X/V:X/RE:H/U:Red

Affected products

  • Qt Qt

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.