How severe is CVE-2026-1264?

CVE-2026-1264 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability none.

Is CVE-2026-1264 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-1264?

CVE-2026-1264 primarily affects Ibm Sterling B2b Integrator. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-1264?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-1264 have an EU (EUVD) identifier?

Yes. CVE-2026-1264 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12661.

When was CVE-2026-1264 published?

CVE-2026-1264 was published on 2026-03-17 and last updated on 2026-06-17.

CVE-2026-1264

CVE-2026-1264 is a high-severity vulnerability in Ibm Sterling B2b Integrator with a CVSS 3.x base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-12661
Weakness: CWE-306
Affected product: Ibm Sterling B2b Integrator
Published: 2026-03-17
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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 and to delete the communities.
How severe is CVE-2026-1264?: CVE-2026-1264 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability none.
Is CVE-2026-1264 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-1264?: CVE-2026-1264 primarily affects Ibm Sterling B2b Integrator. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-1264?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-1264 have an EU (EUVD) identifier?: Yes. CVE-2026-1264 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12661.
When was CVE-2026-1264 published?: CVE-2026-1264 was published on 2026-03-17 and last updated on 2026-06-17.

References

https://www.ibm.com/support/pages/node/7266518

Affected products (4)

cpe:2.3:a:ibm:sterling_b2b_integrator:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:sterling_b2b_integrator:6.2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:sterling_file_gateway:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:sterling_file_gateway:6.2.2.0:*:*:*:*:*:*:*

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