CVE-2026-73793 HPE NonStop Middleware - Insecure Deserialization & Broken Authentication

HPE NonStop Middleware contains a secret key handling and insecure deserialization vulnerability, letting attackers potentially tamper with data or escalate privileges, exploit requires specific conditions not detailed.

CVSS base score 7.9 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.36% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Insecure Deserialization
Impact
Data Tampering, Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:H/A:H
Published
14 October 2026
Updated
15 October 2026
Weakness
CWE-502

Vendor fix

Update to the latest version or apply vendor patches addressing secret key handling and deserialization issues.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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