Use-after-free vulnerability in Qt SVG qsvghandler.cpp allows denial of service via crafted SVG
Priority MEDIUM 42CWE-416Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 2 fixed, 1 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00219 12th percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 2 fixed, 1 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Red Hat 2 advisories
- RHSA-2025:21037 Released 2025-11-11 · Red Hat rating Importantqt6-qtsvg security update
- Red Hat Enterprise Linux AppStream (v. 10) qt6-qtsvg-6.9.1-2.el10_1.1, qt6-qtsvg-devel-6.9.1-2.el10_1.1
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) qt6-qtsvg-examples-6.9.1-2.el10_1.1
- RHSA-2025:19772 Released 2025-11-05 · Red Hat rating Importantqt6-qtsvg security update
- Red Hat Enterprise Linux AppStream (v. 10) qt6-qtsvg-6.8.1-1.el10_0.1, qt6-qtsvg-devel-6.8.1-1.el10_0.1
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) qt6-qtsvg-examples-6.8.1-1.el10_0.1
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux AppStream (v. 10) | Fixed | RHSA-2025:19772, RHSA-2025:21037 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) | Fixed | RHSA-2025:19772, RHSA-2025:21037 |
Not affected: 2 products
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2025-10729
- 2026-10-03 Alias added: GHSA-cprv-rgr4-v7vh
References
More qt vulnerabilities
- TI-2024-23902 QAbstractOAuth in Qt Network Authorization in Qt before 5.15.17, 6.x before 6.2.13, 6.3.x… CVSS 3.1CRITICAL 9.8
- TI-2022-21359 Heap-based buffer overflow in Qt CVSS 3.1HIGH 8.8
- TI-2022-19524 Integer overflow in Qt CVSS 3.1HIGH 8.8
- TI-2023-18997 In Qt before 5.15.15, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.2, there can… CVSS 3.1HIGH 7.5
- TI-2021-09305 Integer Overflow vulnerability in qsvghandler.cpp in Qt qtsvg versions 5.15.1, 6.0.0… CVSS 3.1MEDIUM 5.5
- TI-2023-28356 An issue was discovered in the HTTP2 implementation in Qt before 5.15.17, 6.x before… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2025-10729 · CVE Program
- CVE-2025-10729 · NVD
- FIRST EPSS
- GHSA-cprv-rgr4-v7vh · GitHub Advisory Database · CC BY 4.0
- CVE-2025-10729 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences