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Fencer Intel
medium 4.0

CVE-2026-105923 json

Null-pointer dereference in QTriangulator reachable through VectorImage

published 19d ago modified 11d ago also EUVD-2026-107159

cvss
4.0
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

A malicious SVG can trigger an integer overflow which in turn triggers a null-pointer dereference in VectorImage QML Type.

Patch / fix

  • qt Qt 6.8.9, 6.11.3

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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-2026-105923 updated cvss 5.5

qt6: qt6: Denial of Service via crafted SVG in VectorImage

  • Red Hat Enterprise Linux 10 qt6 6.10.1-1.el10
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Hardened Images qt6 6.12.0-1.hum1, qt6-filesystem 6.12.0-1.hum1, qt6-rpm-macros 6.12.0-1.hum1, qt6-srpm-macros 6.12.0-1.hum1
    fixed: vendor fix RHSA-2026:89193

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
11d ago

Exploit prediction

0.12% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

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

Affected products

  • qt Qt

Classification

Weakness
  • CWE-476 NULL Pointer Dereference
  • CWE-190 Integer Overflow or Wraparound

References

Sources

Fencer Intel 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.