CVE-2026-95509: high-severity vulnerability in Qt for MCUs
Out-of-bounds read vulnerability in string formatting impacts Qt for MCUs
Published
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8epss 0.3%
exploitation probability
0.3%top 78% of all CVEs
observed exploitation
nono source reports it
Strings optimized for Latin-1 displaying Latin-1 characters cause incorrect String.arg() formatting by an incorrect buffer size calculation, causing out-of-bounds reading.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Affected products
qt · Qt for MCUsRelated CVEs — Qt for MCUs
In the same product, most dangerous first.