Integer Overflow vulnerability in qsvghandler.cpp in Qt qtsvg versions 5.15.1, 6.0.0…
Priority MEDIUM 58CWE-190Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-190 and the CVSS impact.
Summary
Integer Overflow vulnerability in qsvghandler.cpp in Qt qtsvg versions 5.15.1, 6.0.0, 6.0.2, and 6.2, allows local attackers to cause a denial of service (DoS).
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00288 21st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 18
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:qt:qt:5.15.1:*:*:*:*:*:*:* | 5.15.1 | Vulnerable | qt |
| cpe:2.3:a:qt:qt:6.0.0:-:*:*:*:*:*:* | 6.0.0 | Vulnerable | qt |
| cpe:2.3:a:qt:qt:6.0.0:alpha1:*:*:*:*:*:* | 6.0.0 alpha1 | Vulnerable | qt |
| cpe:2.3:a:qt:qt:6.0.0:beta1:*:*:*:*:*:* | 6.0.0 beta1 | Vulnerable | qt |
| cpe:2.3:a:qt:qt:6.0.0:beta2:*:*:*:*:*:* | 6.0.0 beta2 | Vulnerable | qt |
| cpe:2.3:a:qt:qt:6.0.0:beta3:*:*:*:*:*:* | 6.0.0 beta3 | Vulnerable | qt |
| cpe:2.3:a:qt:qt:6.0.0:beta4:*:*:*:*:*:* | 6.0.0 beta4 | Vulnerable | qt |
| cpe:2.3:a:qt:qt:6.0.0:beta5:*:*:*:*:*:* | 6.0.0 beta5 | Vulnerable | qt |
| cpe:2.3:a:qt:qt:6.0.0:rc1:*:*:*:*:*:* | 6.0.0 rc1 | Vulnerable | qt |
| cpe:2.3:a:qt:qt:6.0.0:rc2:*:*:*:*:*:* | 6.0.0 rc2 | Vulnerable | qt |
- cpe:2.3:a:qt:qt:5.15.1:*:*:*:*:*:*:* Versions 5.15.1 Vulnerable ·qt
- cpe:2.3:a:qt:qt:6.0.0:-:*:*:*:*:*:* Versions 6.0.0 Vulnerable ·qt
- cpe:2.3:a:qt:qt:6.0.0:alpha1:*:*:*:*:*:* Versions 6.0.0 alpha1 Vulnerable ·qt
- cpe:2.3:a:qt:qt:6.0.0:beta1:*:*:*:*:*:* Versions 6.0.0 beta1 Vulnerable ·qt
- cpe:2.3:a:qt:qt:6.0.0:beta2:*:*:*:*:*:* Versions 6.0.0 beta2 Vulnerable ·qt
- cpe:2.3:a:qt:qt:6.0.0:beta3:*:*:*:*:*:* Versions 6.0.0 beta3 Vulnerable ·qt
- cpe:2.3:a:qt:qt:6.0.0:beta4:*:*:*:*:*:* Versions 6.0.0 beta4 Vulnerable ·qt
- cpe:2.3:a:qt:qt:6.0.0:beta5:*:*:*:*:*:* Versions 6.0.0 beta5 Vulnerable ·qt
- cpe:2.3:a:qt:qt:6.0.0:rc1:*:*:*:*:*:* Versions 6.0.0 rc1 Vulnerable ·qt
- cpe:2.3:a:qt:qt:6.0.0:rc2:*:*:*:*:*:* Versions 6.0.0 rc2 Vulnerable ·qt
Show 8 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:qt:qt:6.0.2:*:*:*:*:*:*:* | 6.0.2 | Vulnerable | qt |
| cpe:2.3:a:qt:qt:6.2.0:alpha1:*:*:*:*:*:* | 6.2.0 alpha1 | Vulnerable | qt |
| cpe:2.3:a:qt:qt:6.2.0:beta1:*:*:*:*:*:* | 6.2.0 beta1 | Vulnerable | qt |
| cpe:2.3:a:qt:qt:6.2.0:beta2:*:*:*:*:*:* | 6.2.0 beta2 | Vulnerable | qt |
| cpe:2.3:a:qt:qt:6.2.0:beta3:*:*:*:*:*:* | 6.2.0 beta3 | Vulnerable | qt |
| cpe:2.3:a:qt:qt:6.2.0:beta4:*:*:*:*:*:* | 6.2.0 beta4 | Vulnerable | qt |
| cpe:2.3:a:qt:qt:6.2.0:rc1:*:*:*:*:*:* | 6.2.0 rc1 | Vulnerable | qt |
| cpe:2.3:a:qt:qt:6.2.0:rc2:*:*:*:*:*:* | 6.2.0 rc2 | Vulnerable | qt |
- cpe:2.3:a:qt:qt:6.0.2:*:*:*:*:*:*:* Versions 6.0.2 Vulnerable ·qt
- cpe:2.3:a:qt:qt:6.2.0:alpha1:*:*:*:*:*:* Versions 6.2.0 alpha1 Vulnerable ·qt
- cpe:2.3:a:qt:qt:6.2.0:beta1:*:*:*:*:*:* Versions 6.2.0 beta1 Vulnerable ·qt
- cpe:2.3:a:qt:qt:6.2.0:beta2:*:*:*:*:*:* Versions 6.2.0 beta2 Vulnerable ·qt
- cpe:2.3:a:qt:qt:6.2.0:beta3:*:*:*:*:*:* Versions 6.2.0 beta3 Vulnerable ·qt
- cpe:2.3:a:qt:qt:6.2.0:beta4:*:*:*:*:*:* Versions 6.2.0 beta4 Vulnerable ·qt
- cpe:2.3:a:qt:qt:6.2.0:rc1:*:*:*:*:*:* Versions 6.2.0 rc1 Vulnerable ·qt
- cpe:2.3:a:qt:qt:6.2.0:rc2:*:*:*:*:*:* Versions 6.2.0 rc2 Vulnerable ·qt
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. 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 8 | Affected | No fix yet |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
Timeline
- 2026-10-02 Threatist record created from CVE-2021-28025
- 2026-10-03 Alias added: GHSA-3w9r-2mqj-cf5c
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-2023-28356 An issue was discovered in the HTTP2 implementation in Qt before 5.15.17, 6.x before… CVSS 3.1CRITICAL 9.8
- TI-2011-02824 Buffer overflow in the TIFF reader in gui/image/qtiffhandler.cpp in Qt 4.7.4 allows… CVSS 2.0HIGH 9.3
Sources
- CVE-2021-28025 · CVE Program
- CVE-2021-28025 · NVD
- FIRST EPSS
- GHSA-3w9r-2mqj-cf5c · GitHub Advisory Database · CC BY 4.0
- CVE-2021-28025 · 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