CVE-2026-92843 NetX Secure - Out of Bounds Read

NetX Secure contains an unsigned-integer underflow caused by missing bounds check in TLS 1.3 Certificate-message parser, letting malicious TLS 1.3 servers trigger heap out-of-bounds read pre-authentication during handshake.

CVSS base score 8.7 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Out of Bounds Read
Impact
Information Disclosure, Denial Of Service
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
20 October 2026
Updated
21 October 2026
Weakness
CWE-125

Vendor fix

Update to the latest version of NetX Secure containing the fix.

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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