CVE-2026-101201
QBinaryJson::fromBinaryData() integer overflow leading to OOB read
MEDIUM
4.3
CVSS Score
Published: October 20, 2026 at 08:20 AM UTC
Updated: October 20, 2026 at 07:59 PM UTC
1 product affected across 1 vendorQt
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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.2%
SSVC
No known exploit
Description
A malformed header in the binary file fed to QBinaryJson::fromBinaryData() can cause undefined behaviour because of out-of-bounds read.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (3)
Vendor Advisory
Source: cverecord
https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-101201SSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
4.3MEDIUMQt
Vector?
Quick Info
StatusAWAITING ANALYSIS
CWE
CWE-190CWE-125
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