CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2025-2000
Critical (9.8) in ibm qiskit. EPSS 0.8% chance of exploitation in the next 30 days. Fixed in qiskit 1.4.2, 2.0.0rc2.
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()` function could potentially execute any arbitrary Python code embedded in the correct place in the binary file as part of specially constructed payload.
Severity
- EPSS
- 0.8% chance of exploitation in the next 30 days; higher than 56% of CVEs (scores of 2026-10-31)
- CWE
- CWE-502
- Published
- Modified
- Record from
- the NVD, synced
Affected
- ibm:qiskit
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-6m2c-76ff-6vrf | PyPI | qiskit-terra | >=0.18.0 <=0.46.3 | no fix published |
| GHSA-6m2c-76ff-6vrf | PyPI | qiskit | <1.4.2 | 1.4.2 |
| GHSA-6m2c-76ff-6vrf | PyPI | qiskit | >=2.0.0rc1 <2.0.0rc2 | 2.0.0rc2 |
| PYSEC-2026-510 | PyPI | qiskit | <1.4.2 >=2.0.0rc1 <2.0.0rc2 | 1.4.2, 2.0.0rc2 |
| PYSEC-2026-511 | PyPI | qiskit-terra | >=0.18.0 <=0.46.3 | no fix published |