Skip to content
Fencer Vulns
medium 4.3

CVE-2026-107472 json

Out-of-bounds read vulnerability in QTextCodec TSCII encoding impacts Qt

published 2026-10-27 13 d ago modified 2026-11-04 5 d ago also EUVD-2026-110622

cvss
4.3
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 1%
public exploits
0
none known

Summary

An out-of-bounds read vulnerability in the QTextCodec TSCII encoding of the Qt 5 Compatibility APIs module (Qt Core in Qt 5 and earlier) impacts Qt. Applications that convert text to the TSCII encoding through QTextCodec may read memory outside the input buffer, which can cause the application to crash or misinterpret the data.

Patch / fix

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-107472 updated cvss 5.5

qt: qt5: qt6: qt: Denial of Service via out-of-bounds read in QTextCodec TSCII encoding

  • Red Hat Enterprise Linux 6 qt, qt-x11, qt-odbc, qt-demos, qt-mysql, qt3-ODBC, +10 more
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 qt, qt-x11, qt-odbc, qt-qvfb, qt-demos, qt-mysql, +12 more Red Hat Enterprise Linux 8 qt5, qt5-rpm-macros, qt5-srpm-macros Red Hat Enterprise Linux 9 qt5, qt5-rpm-macros, qt5-srpm-macros Red Hat Enterprise Linux 10 qt6 6.10.1-1.el10
    affected: no fix available “Fix deferred”
  • Red Hat Hardened Images qt6 6.10.1-1.el10
    affected: no fix available
  • Red Hat Hardened Images qt5
    not affected: component not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
5 d ago

Exploit prediction

0.12% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 4.3 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/R:U/RE:L/U:Green
CNA 4.0 4.3 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/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:U/V:X/RE:L/U:Green

Affected products

  • qt Qt

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.