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Vulnerability Details :

CVE-2025-3512

Summary
Assigner-TQtC
Assigner Org ID-a59d8014-47c4-4630-ab43-e1b13cbe58e3
Published At-11 Apr, 2025 | 07:39
Updated At-25 Apr, 2025 | 18:03
Rejected At-
Credits

Buffer overflow in QTextMarkdownImporter

There is a Heap-based Buffer Overflow vulnerability in QTextMarkdownImporter. This requires an incorrectly formatted markdown file to be passed to QTextMarkdownImporter to trigger the overflow.This issue affects Qt from 6.8.0 to 6.8.4. Versions up to 6.6.0 are known to be unaffected, and the fix is in 6.8.4 and later.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:TQtC
Assigner Org ID:a59d8014-47c4-4630-ab43-e1b13cbe58e3
Published At:11 Apr, 2025 | 07:39
Updated At:25 Apr, 2025 | 18:03
Rejected At:
▼CVE Numbering Authority (CNA)
Buffer overflow in QTextMarkdownImporter

There is a Heap-based Buffer Overflow vulnerability in QTextMarkdownImporter. This requires an incorrectly formatted markdown file to be passed to QTextMarkdownImporter to trigger the overflow.This issue affects Qt from 6.8.0 to 6.8.4. Versions up to 6.6.0 are known to be unaffected, and the fix is in 6.8.4 and later.

Affected Products
Vendor
The Qt Company
Product
Qt
Default Status
unaffected
Versions
Affected
  • From 6.8.0 before 6.8.4 (python)
Unaffected
  • From 0 before 6.6.0 (python)
  • 6.8.4 (python)

unknown

  • From 6.6.0 before 6.8.0 (python)
Problem Types
TypeCWE IDDescription
CWECWE-122CWE-122 Heap-based Buffer Overflow
Type: CWE
CWE ID: CWE-122
Description: CWE-122 Heap-based Buffer Overflow
Metrics
VersionBase scoreBase severityVector
4.04.8MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/U:Clear
Version: 4.0
Base score: 4.8
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/U:Clear
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-100CAPEC-100 Overflow Buffers
CAPEC ID: CAPEC-100
Description: CAPEC-100 Overflow Buffers
Solutions
Configurations
Workarounds
Exploits
Credits
finder
oss-fuzz
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://codereview.qt-project.org/c/qt/qtbase/+/635546
N/A
Hyperlink: https://codereview.qt-project.org/c/qt/qtbase/+/635546
Resource: N/A
▼Authorized Data Publishers (ADP)
1. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
2. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
http://www.openwall.com/lists/oss-security/2025/04/24/4
N/A
http://www.openwall.com/lists/oss-security/2025/04/24/5
N/A
http://www.openwall.com/lists/oss-security/2025/04/24/6
N/A
http://www.openwall.com/lists/oss-security/2025/04/25/1
N/A
http://www.openwall.com/lists/oss-security/2025/04/25/2
N/A
Hyperlink: http://www.openwall.com/lists/oss-security/2025/04/24/4
Resource: N/A
Hyperlink: http://www.openwall.com/lists/oss-security/2025/04/24/5
Resource: N/A
Hyperlink: http://www.openwall.com/lists/oss-security/2025/04/24/6
Resource: N/A
Hyperlink: http://www.openwall.com/lists/oss-security/2025/04/25/1
Resource: N/A
Hyperlink: http://www.openwall.com/lists/oss-security/2025/04/25/2
Resource: N/A
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:a59d8014-47c4-4630-ab43-e1b13cbe58e3
Published At:11 Apr, 2025 | 08:15
Updated At:15 Apr, 2026 | 00:35

There is a Heap-based Buffer Overflow vulnerability in QTextMarkdownImporter. This requires an incorrectly formatted markdown file to be passed to QTextMarkdownImporter to trigger the overflow.This issue affects Qt from 6.8.0 to 6.8.4. Versions up to 6.6.0 are known to be unaffected, and the fix is in 6.8.4 and later.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.04.8MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/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:X/AU:X/R:X/V:X/RE:X/U:Clear
Type: Secondary
Version: 4.0
Base score: 4.8
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/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:X/AU:X/R:X/V:X/RE:X/U:Clear
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-122Secondarya59d8014-47c4-4630-ab43-e1b13cbe58e3
CWE ID: CWE-122
Type: Secondary
Source: a59d8014-47c4-4630-ab43-e1b13cbe58e3
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://codereview.qt-project.org/c/qt/qtbase/+/635546a59d8014-47c4-4630-ab43-e1b13cbe58e3
N/A
http://www.openwall.com/lists/oss-security/2025/04/24/4af854a3a-2127-422b-91ae-364da2661108
N/A
http://www.openwall.com/lists/oss-security/2025/04/24/5af854a3a-2127-422b-91ae-364da2661108
N/A
http://www.openwall.com/lists/oss-security/2025/04/24/6af854a3a-2127-422b-91ae-364da2661108
N/A
http://www.openwall.com/lists/oss-security/2025/04/25/1af854a3a-2127-422b-91ae-364da2661108
N/A
http://www.openwall.com/lists/oss-security/2025/04/25/2af854a3a-2127-422b-91ae-364da2661108
N/A
Hyperlink: https://codereview.qt-project.org/c/qt/qtbase/+/635546
Source: a59d8014-47c4-4630-ab43-e1b13cbe58e3
Resource: N/A
Hyperlink: http://www.openwall.com/lists/oss-security/2025/04/24/4
Source: af854a3a-2127-422b-91ae-364da2661108
Resource: N/A
Hyperlink: http://www.openwall.com/lists/oss-security/2025/04/24/5
Source: af854a3a-2127-422b-91ae-364da2661108
Resource: N/A
Hyperlink: http://www.openwall.com/lists/oss-security/2025/04/24/6
Source: af854a3a-2127-422b-91ae-364da2661108
Resource: N/A
Hyperlink: http://www.openwall.com/lists/oss-security/2025/04/25/1
Source: af854a3a-2127-422b-91ae-364da2661108
Resource: N/A
Hyperlink: http://www.openwall.com/lists/oss-security/2025/04/25/2
Source: af854a3a-2127-422b-91ae-364da2661108
Resource: N/A

Change History

0
Information is not available yet

Similar CVEs

1Records found
CVE-2026-6210
Matching Score-6
Assigner-The Qt Company
ShareView Details
Matching Score-6
Assigner-The Qt Company
CVSS Score-8.7||HIGH
EPSS-0.06% / 17.26%
||
7 Day CHG+0.01%
Published-06 May, 2026 | 11:59
Updated-07 May, 2026 | 15:10
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Type confusion and heap-buffer-overflow in Qt SVG marker handling causing application crash

A type confusion vulnerability in Qt SVG allows an attacker to cause an application crash via a crafted SVG image. When processing SVG marker references, the renderer retrieves a node by its id attribute and casts it to QSvgMarker* without verifying the node type. A non-marker element (such as a <line> element) that references itself as a marker triggers an out-of-bounds heap read due to the object size difference between QSvgLine and QSvgMarker, followed by an endless recursion that bypasses the marker recursion guard through incorrect virtual dispatch. The result is an application crash (denial of service). This issue affects Qt SVG:  from 6.7.0 before 6.8.8, from 6.9.0 before 6.11.1.

Action-Not Available
Vendor-The Qt Company
Product-Qt
CWE ID-CWE-122
Heap-based Buffer Overflow
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
Details not found