What is CVE-2025-1403?

CVE-2025-1403 is a high-severity vulnerability in Ibm Qiskit, classified under Deserialization of Untrusted Data. CVSS score: 8.6/10. Published 2025-02-21.

How severe is CVE-2025-1403?

High severity. CVSS v3 base score is 8.6 out of 10.

Deserialization in Ibm Qiskit

CVE-2025-1403

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.

Vulnerability class: Insecure Deserialization

EPSS: 0.007 (46.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

Affected products

Ibm Qiskit
Ibm Qiskit Sdk — versions 0.45.0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

psirt@us.ibm.com (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2025-1403?: CVE-2025-1403 is a high-severity vulnerability in Ibm Qiskit, classified under Deserialization of Untrusted Data. CVSS score: 8.6/10. Published 2025-02-21.
How severe is CVE-2025-1403?: High severity. CVSS v3 base score is 8.6 out of 10.