CVE-2026-78628
Improper Input Validation in the Okta Credential Provider for Windows
CVSS Score
6.0
EPSS Score
0.0%
EPSS Percentile
0th
The Okta Credential Provider for Windows does not validate a serialized credential buffer before interpreting it as a Kerberos logon structure. The buffer size and packed string offsets are not checked. Processing a malformed buffer can cause the credential provider process to terminate unexpectedly or lead to out-of-bounds memory reads and writes, which may result in the disclosure of adjacent process memory into local system logs.
| CWE | CWE-20 CWE-125 CWE-787 |
| Vendor | okta |
| Product | okta credential provider for windows |
| Published | Oct 13, 2026 |
| Last Updated | Oct 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
Okta / Okta Credential Provider for Windows
0 < 1.4.6.0