CVE-2026-21045 Memory corruption in Samsung Mobile Devices

High 8.4 Published Updated

Remote attackers can execute arbitrary code via out-of-bounds write in TIFF parsing on Samsung mobile devices.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-21045?

CVE-2026-21045 is a high-severity memory corruption vulnerability in Samsung Mobile Devices, published on 10 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Out-of-bounds write in parsing TIFF format in libimagecodec.media.quram.so prior to SMR Jul-2026 Release 1 allows remote attackers to write out-of-bounds memory.

Which versions are affected by CVE-2026-21045?

How do I fix CVE-2026-21045?

No fix has been published for CVE-2026-21045 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-21045 being exploited?

There is no known exploitation of CVE-2026-21045 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-rw4v-99fx-2m8m.

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