CVE-2026-20996 Weak cryptography in Smart Switch

High 7.1 Published 16 Mar 2026 Updated 16 Mar 2026

Remote attackers can force a downgraded authentication scheme in Samsung Smart Switch due to weak cryptography, potentially bypassing security controls.

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: None listed

What is CVE-2026-20996?

CVE-2026-20996 is a high-severity vulnerability in Samsung Mobile Smart Switch, published on 16 Mar 2026. 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

Use of a broken or risky cryptographic algorithm in Smart Switch prior to version 3.7.69.15 allows remote attackers to configure a downgraded scheme for authentication.

Weakness: CWE-327

Which versions are affected by CVE-2026-20996?

It affects 1 product.

Products include Samsung Smart Switch.

How do I fix CVE-2026-20996?

No fix has been published for CVE-2026-20996 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-20996 being exploited?

There is no known exploitation of CVE-2026-20996 in the wild and no public exploit code.

Sources

Also known as GHSA-rcpf-m3cr-fh99.