CVE-2025-1403 HIGH

CVE-2025-1403: Qiskit SDK denial of service

Vendor Ibm
Product Qiskit SDK
Weakness CWE-502 · Unsafe deserialization
Published February 21, 2025
Last update August 26, 2025

CVSS base score

8.6/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

What the vulnerability does

01Description

Qiskit SDK 0.45.0 through 1.2.4 could allow a remote attacker to cause a denial of service using a maliciously crafted QPY file containing a malformed symengine serialization stream which can cause a segfault within the symengine library.

Key dates

02Disclosure timeline

February 21, 2025 CVE published
August 26, 2025 Record updated