cve.bz

CVE-2026-116501 ibm qiskit sdk: Out-of-bounds Write

8.4 highEPSS 0.2%

High (8.4) in ibm qiskit sdk. EPSS 0.2% estimated probability of exploitation activity in the next 30 days.

On this page
IBM Qiskit SDK 2.4.0 through 2.6.1 could allow a local attacker to execute arbitrary code due to an out-of-bounds write caused by improper input validation when accessing a corrupted unitary matrix.

Severity

CVSS 3.1

8.4 high
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
0.2% estimated probability of exploitation activity in the next 30 days; 6th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
CISA's assessment (SSVC)
Exploitation: none · Automatable: no · Technical impact: total, assessed 2026-11-09. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
CWE
CWE-787 Out-of-bounds Write
Published
Modified
Assigned by
ibm (CNA)
NVD analysis
Awaiting analysis
Record from
the NVD, synced

Ask an AI about this CVE

ChatGPTClaudeGoogle AI Mode

Show the promptExplain CVE-2026-116501 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-116501?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-116501?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-116501 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.

Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.

Badge for a README or a site

CVE-2026-116501

An image that stays current: it is drawn from the data each time it is fetched (a host that proxies images, as GitHub does, may show its copy for a while). Markdown:

[![CVE-2026-116501](https://cve.bz/cve/badge/CVE-2026-116501.svg)](https://cve.bz/cve/CVE-2026-116501)

HTML:

<a href="https://cve.bz/cve/CVE-2026-116501"><img src="https://cve.bz/cve/badge/CVE-2026-116501.svg" alt="CVE-2026-116501"></a>

Affected

  • ibm:qiskit sdk

Versions

From the CNA's record in the CVE List.

ProductAffected
IBM Qiskit SDKfrom 2.4.0 through 2.6.1

References

Check your stackJSON