CVE-2022-31796: Jpeg Libjpeg

Medium severity, CVSS 6.5. EPSS: 0.9% chance of exploitation in the next 30 days.

libjpeg 1.63 has a heap-based buffer over-read in HierarchicalBitmapRequester::FetchRegion in hierarchicalbitmaprequester.cpp because the MCU size can be different between allocation and use.

Affected products

• Jpeg Libjpeg: version 1.63 only

Published 2022-06-02. Last modified 2026-06-17.