CVE-2026-1264: IBM Sterling b2b Integrator

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

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 and to delete the communities.

Affected products

• IBM Sterling b2b Integrator: from 6.1.0.0, before 6.1.2.8 (fixed in 6.1.2.8); from 6.2.0.0, before 6.2.0.5_2 (fixed in 6.2.0.5_2); from 6.2.1.0, before 6.2.1.1_2 (fixed in 6.2.1.1_2); version 6.2.2.0 only
• IBM Sterling File Gateway: from 6.1.0.0, before 6.1.2.8 (fixed in 6.1.2.8); from 6.2.0.0, before 6.2.0.5_2 (fixed in 6.2.0.5_2); from 6.2.1.0, before 6.2.1.1_2 (fixed in 6.2.1.1_2); version 6.2.2.0 only

Published 2026-03-17. Last modified 2026-06-17.