Integer truncation vulnerability in QTextCodec conversion functions impacts Qt Framework

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-107479
StatePUBLISHED
AssignerQt
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-04 13:17:21 UTC
Updated2026-11-06 21:13:01 UTC
DescriptionAn integer truncation vulnerability in the QTextCodec conversion functions of the Qt 5 Core Compatibility APIs module impacts the Qt Framework. An application using the affected functionality could crash.

Risk And Classification

Primary CVSS: v4.0 1.7 LOW from a59d8014-47c4-4630-ab43-e1b13cbe58e3

CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/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:L/U:Green

EPSS: 0.001630000 probability, percentile 0.055190000 (date 2026-11-08)

Problem Types: CWE-197 | CWE-197 CWE-197 Numeric Truncation Error

VersionSourceTypeScoreSeverityVector
4.0a59d8014-47c4-4630-ab43-e1b13cbe58e3Secondary1.7LOWCVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/C...
4.0CNACVSS1.7LOWCVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/R...

CVSS v4.0 Breakdown

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
None
User Interaction
Active
Confidentiality
None
Integrity
None
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/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:L/U:Green

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Qt Qt unknown 5.0.0 python Not specified
CNA Qt Qt affected 5.0.0 6.8.8 python Not specified
CNA Qt Qt affected 6.9.0 6.11.2 python Not specified

References

ReferenceSourceLinkTags
codereview.qt-project.org/c/qt/qt5compat/+/763226 a59d8014-47c4-4630-ab43-e1b13cbe58e3 codereview.qt-project.org
wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products a59d8014-47c4-4630-ab43-e1b13cbe58e3 wiki.qt.io
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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