CVE-2025-21035 Missing authorization in Samsung Calendar

Medium 4.6 Published 3 Sep 2025 Updated 3 Sep 2025

Physical attackers can access data across multiple user profiles in Samsung Calendar due to improper access control.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-21035?

CVE-2025-21035 is a medium-severity missing authorization vulnerability in Samsung Calendar, published on 3 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Improper access control in Samsung Calendar prior to version 12.5.06.5 in Android 14 and 12.6.01.12 in Android 15 allows physical attackers to access data across multiple user profiles.

Which versions are affected by CVE-2025-21035?

It affects 1 product.

Products include Samsung Calendar.

How do I fix CVE-2025-21035?

No fix has been published for CVE-2025-21035 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2025-21035 being exploited?

There is no known exploitation of CVE-2025-21035 in the wild and no public exploit code.

Sources

Also known as GHSA-x2rm-qv9w-2p5q.