CVE-2026-10758 Esri Lerc has a security vulnerability

High 7.5 Published Updated

A remote attacker can cause a denial of service by sending crafted imagery to applications using the Esri Lerc library.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-10758?

CVE-2026-10758 is a high-severity vulnerability in Esri Lerc, published on 25 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Esri LERC is an open-source image or raster format which supports rapid encoding and decoding for any pixel type. A Heap based Out-of-Bounds Write via Integer Overflow in LERC versions 4.1.0 and earlier may allow a remote, unauthenticated attacker who can pass specifically crafted attacker controlled imagery to an application that uses LERC to crash the application, leading to a denial of service.

Weakness: CWE-190

Which versions are affected by CVE-2026-10758?

Linux distribution packages (4)
liblerc Red Hat:hummingbird:1All versions0:4.2.0-1.hum1
liblerc-devel Red Hat:hummingbird:1All versions0:4.2.0-1.hum1
mingw32-liblerc Red Hat:hummingbird:1All versions0:4.2.0-1.hum1
mingw64-liblerc Red Hat:hummingbird:1All versions0:4.2.0-1.hum1

How do I fix CVE-2026-10758?

Upgrade to a fixed version.

Is CVE-2026-10758 being exploited?

There is no known exploitation of CVE-2026-10758 in the wild and no public exploit code.

Sources

Also known as AZL-105081, GHSA-cw29-mw7w-pj37, GHSA-gfc2-qmh7-jf3x, RHSA-2026:45254.

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