ShellCodeX vulnerability brief
UNASSESSED
Received
CVE-2026-56862
Handshake messages, such as KeyUpdate, are always considered as state-advancing, regardless of whether a handshake has been completed or not. As a result, a malicious client can keep sending KeyUpdate messages to force the server to keep performing key derivation operations indefinitely.
Published 13 Aug 2026, 22:17 UTC
Last modified 13 Aug 2026, 22:17 UTC
01
Attack profile
The conditions required to exploit this vulnerability and its potential impact.
Attack vector
Not assessed
Attack complexity
Not assessed
Privileges required
Not assessed
User interaction
Not assessed
Scope
Not assessed
Confidentiality
Not assessed
Integrity
Not assessed
Availability
Not assessed
02
Affected products
Product applicability statements supplied with the NVD record.
NVD has not published structured affected-product data for this record.
03
Weakness classification
CWE categories help security teams group the underlying software weakness.
Weakness classification is still awaiting analysis.
04
Source references
External advisories, patches and technical reports attached to this CVE record.