CVE-2026-9592
CVE-2026-9592 is a high-severity vulnerability with a CVSS 4.0 base score of 7.5. 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-598.
Key facts
- Severity: High (CVSS 4.0 base score 7.5)
- EPSS exploit prediction: 0% (5th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-598
- Published:
- Last modified:
Description
SEPPmail Secure Email Gateway & SEPPmail Cloud before version 15.0.4.2 allows an attacker to replay & hijack a user session in the GINA web portal, as the session token is disclosed inside the URL and a HTTP header.
Frequently asked questions
- What is CVE-2026-9592?
- SEPPmail Secure Email Gateway & SEPPmail Cloud before version 15.0.4.2 allows an attacker to replay & hijack a user session in the GINA web portal, as the session token is disclosed inside the URL and a HTTP header.
- How severe is CVE-2026-9592?
- CVE-2026-9592 has a CVSS 4.0 base score of 7.5, rated high severity.
- Is CVE-2026-9592 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-9592?
- 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.
- When was CVE-2026-9592 published?
- CVE-2026-9592 was published on 2026-07-17.
References
Other CWE-598 vulnerabilities
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