An out-of-bounds write vulnerability in the Qt QTextCodec iconv-based encoding of the Qt 5 Compatibility APIs module (Qt Core in Qt 5 and earlier) impacts Qt. Under certain conditions, encoding text with QTextCodec may write outside an internal buffer. This can cause the application to crash and may affect data integrity.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 7
- StatusAwaiting Analysis → PublishedNVD modified 2026-10-27 12:24
- StatusPublished → Awaiting AnalysisNVD modified 2026-10-27 15:03
- StatusReceived → PublishedNVD modified 2026-10-27 12:24
- Cpes-3 CPE criteria (now 0)NVD modified 2026-10-27 13:16
- StatusPublished → ReceivedNVD modified 2026-10-27 13:16
- CVSS1.9 (v4.0, CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/R:U/RE:L/U:Green) → 1.9 (v4.0, CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/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)NVD modified 2026-10-27 13:16
- First seenCVSS 1.9 · qtNVD modified 2026-10-27 12:24
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.