CVE-2026-1264 | IBM Sterling B2B Integrator and IBM Sterling File Gateway Improper Access Controls

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.

Published: 2026-03-17 Last update: 2026-03-19 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-1264 is rated Low Risk (30.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.02%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-1264

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-18 — 0.02% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-1264

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.1 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 4.2 [email protected]
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 2.5 [email protected]

Weakness enumeration for CVE-2026-1264

Affected software / configurations for CVE-2026-1264

Vendor Product Version Raw CPE
ibm sterling_b2b_integrator >= 6.1.0.0, < 6.1.2.8 cpe:2.3:a:ibm:sterling_b2b_integrator:*:*:*:*:*:*:*:*
ibm sterling_b2b_integrator >= 6.2.0.0, < 6.2.0.5_2 cpe:2.3:a:ibm:sterling_b2b_integrator:*:*:*:*:*:*:*:*
ibm sterling_b2b_integrator >= 6.2.1.0, < 6.2.1.1_2 cpe:2.3:a:ibm:sterling_b2b_integrator:*:*:*:*:*:*:*:*
ibm sterling_b2b_integrator 6.2.2.0 cpe:2.3:a:ibm:sterling_b2b_integrator:6.2.2.0:*:*:*:*:*:*:*
ibm sterling_file_gateway >= 6.1.0.0, < 6.1.2.8 cpe:2.3:a:ibm:sterling_file_gateway:*:*:*:*:*:*:*:*
ibm sterling_file_gateway >= 6.2.0.0, < 6.2.0.5_2 cpe:2.3:a:ibm:sterling_file_gateway:*:*:*:*:*:*:*:*
ibm sterling_file_gateway >= 6.2.1.0, < 6.2.1.1_2 cpe:2.3:a:ibm:sterling_file_gateway:*:*:*:*:*:*:*:*
ibm sterling_file_gateway 6.2.2.0 cpe:2.3:a:ibm:sterling_file_gateway:6.2.2.0:*:*:*:*:*:*:*

References for CVE-2026-1264

cvelogic Threat Intelligence