CVE-2025-1403

Name: CVE-2025-1403
Creator: NVD / NIST
Published: 2025-02-21T17:15:13.437+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.6/10EPSS 0.66%

Last modified Jun 17, 2026

CVE-2025-1403 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. 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.. EPSS estimates a 0.66% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.6/10

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

EPSS Probability

0.66%

46.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Ibm	Qiskit	>= 0.45.0, <= 1.2.4

References

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

Timeline

Published: Feb 21, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-1403?

How severe is CVE-2025-1403?

CVE-2025-1403 has a CVSS score of 8.6/10 (HIGH severity). The EPSS model estimates a 0.66% probability of exploitation in the next 30 days.

How do I fix CVE-2025-1403?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-1403?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST