CVE-2023-37837

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-07-13 · updated 2026-06-17
Weakness: CWE-787

Description

libjpeg commit db33a6e was discovered to contain a heap buffer overflow via LineBitmapRequester::EncodeRegion at linebitmaprequester.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted file.

Affected products

Jpeg Libjpeg: before 1.66 — fixed in 1.66

How to fix

Upgrade to a fixed version: Jpeg Libjpeg 1.66. Check the vendor advisory for mitigations.

References

https://github.com/thorfdbg/libjpeg/issues/87#BUG0
https://github.com/thorfdbg/libjpeg/issues/87#BUG0

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