Is CVE-2025-1403 in the CISA KEV catalog?

No. CVE-2025-1403 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-1403?

CVE-2025-1403 has a CVSS v3 base score of 8.6 (HIGH).

What is the EPSS score for CVE-2025-1403?

CVE-2025-1403 has an EPSS score of 0.66% (47th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2025-1403

HIGH

8.6

CVSS v3

NVD

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.

CWE-502Deserialization of Untrusted Data

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.66%probability of exploitation in 30 days

47thpercentile

Moderate risk: more likely to be exploited than 47% of all known CVEs.

References

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

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-09-30.