CVE-2023-37369

HIGH
7.5
CVSS Score
Published: August 20, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 06:08 AM UTC
2 products affected across 2 vendorsDebian LinuxQt

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Severity
HIGH7.5
Exploit prediction
EPSS 2%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 5.15.156.0.0 ≤ v < 6.2.96.3.0 ≤ v < 6.5.2
Affected range stops below 5.15.15, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.2.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.5.2, so it looks safe — our inference, not a vendor statement

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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