What is CVE-2025-2000?

CVE-2025-2000 is a critical-severity vulnerability in Ibm Qiskit, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2025-03-14.

How severe is CVE-2025-2000?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2025-2000 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Ibm Qiskit

CVE-2025-2000

A maliciously crafted QPY file can potential execute arbitrary-code embedded in the payload without privilege escalation when deserialising QPY formats < 13. A python process calling Qiskit 0.18.0 through 1.4.1's `qiskit.qpy.load()` functi…

Vulnerability class: Insecure Deserialization

EPSS: 0.007 (50.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Ibm Qiskit
Ibm Qiskit Sdk — versions 0.18.0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

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

Frequently asked questions

What is CVE-2025-2000?: CVE-2025-2000 is a critical-severity vulnerability in Ibm Qiskit, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2025-03-14.
How severe is CVE-2025-2000?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2025-2000 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.