CVE-2025-66483

Received Received - Intake

Session Fixation in IBM Aspera Shares Allows User Impersonation

Publication date: 2026-04-01

Last updated on: 2026-04-06

Assigner: IBM Corporation

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-04-01

Last Modified

2026-04-06

Generated

2026-07-06

AI Q&A

2026-04-02

EPSS Evaluated

2026-07-05

NVD

CVE-2025-66483

EUVD

EUVD-2025-209178

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	aspera_shares	From 1.9.9 (inc) to 1.11.0 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-613	According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization."

Attack-Flow Graph

Executive Summary

IBM Aspera Shares versions 1.9.9 through 1.11.0 have a vulnerability where the system does not invalidate a user's session after a password reset.

This flaw could allow an authenticated user to impersonate another user on the system by continuing to use a session that should have been terminated.

Impact Analysis

This vulnerability can impact you by allowing an authenticated user to impersonate another user, potentially gaining unauthorized access to that user's data or privileges.

Because the session remains valid after a password reset, an attacker could maintain access even after the legitimate user attempts to secure their account.

The CVSS base score of 6.3 indicates a medium severity with potential impacts on confidentiality, integrity, and availability.

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