CVE-2025-1403
CVE-2025-1403 is a high-severity vulnerability in Ibm Qiskit with a CVSS 3.x base score of 8.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.
Key facts
- Severity: High (CVSS 3.x base score 8.6)
- EPSS exploit prediction: 1% (47th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-4473
- Weakness: CWE-502
- Affected product: Ibm Qiskit
- Published:
- Last modified:
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.
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.
- How severe is CVE-2025-1403?
- CVE-2025-1403 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2025-1403 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-1403?
- CVE-2025-1403 affects Ibm Qiskit. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-1403?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2025-1403 have an EU (EUVD) identifier?
- Yes. CVE-2025-1403 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-4473.
- When was CVE-2025-1403 published?
- CVE-2025-1403 was published on 2025-02-21 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:ibm:qiskit:*:*:*:*:*:*:*:*
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