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    CVE-2026-75878

    IBM Sterling File Gateway could allow a remote attacker to bypass authentication and obtain a fully authenticated session due to improper authentication via an unvalidated SSO header.

    Published:Sep 18, 2026
    Last Modified:Sep 19, 2026
    EPS:Sep 18, 2026
    EPSS Score:0.00476
    CVSS Score:9.1

    Affected Products

    Vendor
    Ibm
    Product
    Sterling File Gateway

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-287 Improper Authentication

    Related CVEs

    CVE-2026-81209 (CVSS 4.9) — IBM Sterling B2B Integrator 6.2.1.0 through 6.2.1.2_1, 6.2.2.0 - 6.2.2.1_1 and IBM Sterling File Gateway 6.2.1…
    CVE-2026-19307 (CVSS 4.3) — IBM Sterling B2B Integrator 6.2.1.0 through 6.2.1.2_1 and 6.2.2.0 through 6.2.2.1_1, and IBM Sterling File Gat…
    CVE-2026-18668 (CVSS 6.5) — IBM Sterling File Gateway 6.2.1.0 through 6.2.1.2_1 and  6.2.2.0 - 6.2.2.1_1 could allow a remote attacker to …
    CVE-2026-12737 (CVSS 4.4) — IBM Sterling B2B Integrator 6.2.2.0 through 6.2.2.1_1 and IBM Sterling File Gateway 6.2.2.0 through 6.2.2.1_1 …
    CVE-2026-19273 (CVSS 5.4) — IBM Sterling B2B Integrator 6.2.0.0 through 6.2.0.6_2, 6.2.1.0 - 6.2.1.2, 6.2.2.0 - 6.2.2.1 and IBM Sterling F…
    CVE-2026-19290 (CVSS 7.5) — IBM Sterling File Gateway 6.2.0.0 through 6.2.0.6_1, 6.2.1.0 - 6.2.1.2, 6.2.2.0 - 6.2.2.1 could allow a remote…
    CVE-2025-36431 (CVSS 5.4) — IBM Sterling B2B Integrator 6.2.2.0 through 6.2.2.0_1 and IBM Sterling File Gateway 6.2.2.0 through 6.2.2.0_1 …
    CVE-2025-36298 (CVSS 5.4) — IBM Sterling B2B Integrator 6.1.2.0 through 6.1.2.7_2, 6.2.0.0 through 6.2.0.5_2, 6.2.1.0 through 6.2.1.1_2, a…
    CVE-2026-1918 (CVSS 4.9) — IBM Sterling B2B Integrator 6.2.0.0 through 6.2.0.5_2, 6.2.1.0 through 6.2.1.1_2, and 6.2.2.0 through 6.2.2.0_…
    CVE-2026-3157 (CVSS 4.3) — IBM Sterling B2B Integrator 6.2.0.0 through 6.2.0.5_2, 6.2.1.0 through 6.2.1.1_2, and 6.2.2.0 through 6.2.2.0_…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High