// For flags

CVE-2025-3512

Buffer overflow in QTextMarkdownImporter

Severity Score

4.8
*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

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.

*Credits: oss-fuzz
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
Passive
System
Vulnerable | Subsequent
Confidentiality
None
None
Integrity
None
None
Availability
Low
None
Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
Passive
System
Vulnerable | Subsequent
Confidentiality
None
None
Integrity
None
None
Availability
Low
None
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2025-04-11 CVE Reserved
  • 2025-04-11 CVE Published
  • 2025-04-25 CVE Updated
  • 2025-05-13 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-122: Heap-based Buffer Overflow
CAPEC
  • CAPEC-100: Overflow Buffers
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
The Qt Company
Search vendor "The Qt Company"
 Qt
Search vendor "The Qt Company" for product "Qt"
 >= 6.8.0 < 6.8.4
Search vendor "The Qt Company" for product "Qt" and version " >= 6.8.0 < 6.8.4"
en
Affected