CVE-2026-4870

FAUCET Score

IBM Qiskit SDK 0.43.0 through 2.5.0 could allow an attacker to trigger a segmentation fault leading to a denial of service due to uncontrolled recursion in the parser.

First published: Jun 12, 2026Last modified: Jun 12, 2026

Impacted Technologies

Vendor	Product	Version(s)	CPE
		>= 0.43.0, < 1.4.6CPE matchmatch criteria	cpe:2.3:a:ibm:qiskit_software_development_kit::::::::
		>= 2.0.0, < 2.4.2CPE matchmatch criteria	cpe:2.3:a:ibm:qiskit_software_development_kit::::::::

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

Exploitability Score

3.9

Impact Score

3.6

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.27%

Probability of exploitation in next 30 days

EPSS Percentile

18.8%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0027 is in the 3rd percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

ibm.com / support/pages/node/7276123

Vendor Advisory