CVE-2025-2357 DCMTK dcmjpls JPEG-LS Decoder memory corruption

Medium 5.3 Published Updated

Remote attackers can trigger memory corruption in the DCMTK JPEG-LS decoder, potentially leading to code execution or denial of service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2025-2357?

CVE-2025-2357 is a medium-severity memory corruption vulnerability in DCMTK, published on 17 Mar 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A vulnerability was found in DCMTK 3.6.9. It has been declared as critical. This vulnerability affects unknown code of the component dcmjpls JPEG-LS Decoder. The manipulation leads to memory corruption. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The name of the patch is 3239a7915. It is recommended to apply a patch to fix this issue.

Weakness: CWE-119

Which versions are affected by CVE-2025-2357?

It affects 1 product.

Linux distribution packages (1)
dcmtk openSUSE:TumbleweedAll versions3.6.9-3.1

Products include Offis Dcmtk.

How do I fix CVE-2025-2357?

Apply the vendor's patch.

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

Is CVE-2025-2357 being exploited?

There is no known exploitation of CVE-2025-2357 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2025-2357, GHSA-vwr6-5rc9-p4cw, MGASA-2025-0117, UBUNTU-CVE-2025-2357, openSUSE-SU-2025:14901-1.

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