CVE-2026-75878
CVSS v3
9.1
CRITICAL
EPSS Score
0.6 %
exploit probability, as of 2026-09-28
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
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.
Technical details
- Published
- 2026-09-18
- Last Modified
- 2026-09-19
Frequently asked questions
What is 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.
Is CVE-2026-75878 actively exploited?
Active exploitation of CVE-2026-75878 has not been confirmed. Its EPSS score was 0.6% on 2026-09-28, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-75878?
CVE-2026-75878 has a CVSS v3 base score of 9.1 (CRITICAL severity).
Is CVE-2026-75878 affecting your environment?
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