CVE-2025-1403: qiskit Insecure Deserialization — Fix

Description

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.

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CVSS v3.1 Score

8.6

HIGH

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

Weakness Type (CWE)

CWE-502 Deserialization of Untrusted Data

Affected Products

Vendor	Product	Versions
ibm	qiskit	0.45.0 — 1.2.4

References

Advisories & Patches

https://www.ibm.com/support/pages/node/7183868

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 8.6 (HIGH).

How severe is CVE-2025-1403? +

CVE-2025-1403 has a CVSS v3.1 score of 8.6 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-1403? +

CVE-2025-1403 affects products from ibm, specifically: qiskit. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-1403? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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