// For flags

CVE-2023-37369

qtbase: buffer overflow in QXmlStreamReader

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

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 be an application crash in QXmlStreamReader via a crafted XML string that triggers a situation in which a prefix is greater than a length.

A flaw was found in the qtbase package. When given specifically crafted data, the QXmlStreamReader can end up causing a buffer overflow and, subsequently, a crash.

A vulnerability has been discovered in Qt, where a buffer overflow can lead to denial of service. Versions greater than or equal to 6.5.2 are affected.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
Poc
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-06-30 CVE Reserved
  • 2023-08-20 CVE Published
  • 2024-08-02 CVE Updated
  • 2024-08-02 First Exploit
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Qt
Search vendor "Qt"
Qt
Search vendor "Qt" for product "Qt"
< 5.15.15
Search vendor "Qt" for product "Qt" and version " < 5.15.15"
-
Affected
Qt
Search vendor "Qt"
Qt
Search vendor "Qt" for product "Qt"
>= 6.0.0 < 6.2.9
Search vendor "Qt" for product "Qt" and version " >= 6.0.0 < 6.2.9"
-
Affected
Qt
Search vendor "Qt"
Qt
Search vendor "Qt" for product "Qt"
>= 6.3.0 < 6.5.2
Search vendor "Qt" for product "Qt" and version " >= 6.3.0 < 6.5.2"
-
Affected
Debian
Search vendor "Debian"
Debian Linux
Search vendor "Debian" for product "Debian Linux"
10.0
Search vendor "Debian" for product "Debian Linux" and version "10.0"
-
Affected