CVE-2025-66483 Multiple vulnerabilities have been addressed in IBM Aspera Shares

Medium 6.3 Published 1 Apr 2026 Updated 2 Apr 2026

Authenticated users can impersonate others because sessions are not invalidated after password resets in IBM Aspera Shares.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-66483?

CVE-2025-66483 is a medium-severity authentication bypass vulnerability in IBM Aspera Shares, published on 1 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

IBM Aspera Shares 1.9.9 through 1.11.0 does not invalidate session after a password reset which could allow an authenticated user to impersonate another user on the system.

Weakness: CWE-613

Which versions are affected by CVE-2025-66483?

It affects 1 product.

Products include Ibm Aspera Shares.

How do I fix CVE-2025-66483?

No fix has been published for CVE-2025-66483 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2025-66483 being exploited?

There is no known exploitation of CVE-2025-66483 in the wild and no public exploit code.

Sources

Also known as GHSA-4rp7-5w2x-wwvh.