CVE-2022-31796

6.5 mediumEPSS 0.9%

Medium (6.5) in jpeg libjpeg. 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.

Severity

CVSS 3.1

6.5 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 60% of CVEs (scores of 2026-10-31)
CWE: CWE-125
Published: 2022-06-02
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

jpeg:libjpeg

References

https://github.com/thorfdbg/libjpeg/commit/187035b9726710b4fe11d565c7808975c930895d
https://github.com/thorfdbg/libjpeg/issues/71
https://github.com/thorfdbg/libjpeg/commit/187035b9726710b4fe11d565c7808975c930895d
https://github.com/thorfdbg/libjpeg/issues/71

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