What is CVE-2026-1264?

CVE-2026-1264 is a high-severity vulnerability in Ibm Sterling B2b Integrator, classified under Missing Authentication for Critical Function. CVSS score: 7.1/10. Published 2026-03-17.

How severe is CVE-2026-1264?

High severity. CVSS v3 base score is 7.1 out of 10.

Auth bypass in Ibm Sterling B2b Integrator

CVE-2026-1264

IBM Sterling B2B Integrator and IBM Sterling File Gateway 6.1.0.0 through 6.1.2.7_2, 6.2.0.0 through 6.2.0.5_1, 6.2.1.0 through 6.2.1.1_1, and 6.2.2.0 allows a remote unauthenticated attacker to view and delete the partners of a community…

Vulnerability class: Broken Authentication

EPSS: 0.000 (13.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N.

Affected products

Ibm Sterling B2b Integrator — versions 6.1.0.0, 6.2.0.0, 6.2.1.0

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

www.ibm.com/support/pages/node/7266518 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-1264?: CVE-2026-1264 is a high-severity vulnerability in Ibm Sterling B2b Integrator, classified under Missing Authentication for Critical Function. CVSS score: 7.1/10. Published 2026-03-17.
How severe is CVE-2026-1264?: High severity. CVSS v3 base score is 7.1 out of 10.