Vulnerability · Published Oct 3, 2025 · Assigned by TQtC
CVE-2025-10729Use-after-free vulnerability in Qt SVG qsvghandler.cpp allows denial of service via crafted SVG
Critical 9.4
In plain English
A critical-severity use-after-free in Qt from Qt. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 4.0)9.4Critical
Exploit odds (30 days)0.2%top 87.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:10 | qt6-qtsvg | 6.8.1-1.el10_0.1 | ALSA-2025:19772 |
| AlmaLinux:10 | qt6-qtsvg-devel | 6.8.1-1.el10_0.1 | ALSA-2025:19772 |
| AlmaLinux:10 | qt6-qtsvg-examples | 6.8.1-1.el10_0.1 | ALSA-2025:19772 |
| Debian:12 | qt6-svg | no fix listed | DEBIAN-CVE-2025-10729 |
| Debian:13 | qt6-svg | no fix listed | DEBIAN-CVE-2025-10729 |
| Debian:14 | qt6-svg | 6.10.2-5 | DEBIAN-CVE-2025-10729 |
| Debian:12 | qtsvg-opensource-src | no fix listed | DEBIAN-CVE-2025-10729 |
| Debian:13 | qtsvg-opensource-src | no fix listed | DEBIAN-CVE-2025-10729 |
| Debian:14 | qtsvg-opensource-src | no fix listed | DEBIAN-CVE-2025-10729 |
| Rocky Linux:10 | qt6-qtsvg | 0:6.9.1-2.el10_1.1 | RLSA-2025:21037 |
| Rocky Linux:10 | qt6-qtsvg | 0:6.8.1-1.el10_0.1 | RLSA-2025:19772 |
| Ubuntu:22.04:LTS | qt6-svg | no fix listed | UBUNTU-CVE-2025-10729 |
| Ubuntu:24.04:LTS | qt6-svg | no fix listed | UBUNTU-CVE-2025-10729 |
| Ubuntu:25.10 | qt6-svg | no fix listed | UBUNTU-CVE-2025-10729 |
| Ubuntu:26.04:LTS | qt6-svg | no fix listed | UBUNTU-CVE-2025-10729 |
| Ubuntu:26.10 | qt6-svg | no fix listed | UBUNTU-CVE-2025-10729 |
Affected products (as reported)
Weakness: CWE-416 · Vector: 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