CVE-2026-19395: medium-severity vulnerability in Qt for MCUs
An empty <img> attribute value in styled text triggers a parser error that halts the device.
Published
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.6epss 0.3%
exploitation probability
0.3%top 85% of all CVEs
observed exploitation
nono source reports it
In Qt for MCUs, a Text element that displays styled text halts the device if an <img> tag in the text contains an attribute with an empty value. The text parser passes the empty value to an internal check that only accepts non-empty values. The check fails and reports an error, and the default error handler halts the device.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
Affected products
qt · Qt for MCUsRelated CVEs — Qt for MCUs
In the same product, most dangerous first.