EUVD-2026-18064
2026-04-01
mitre
9.1
CVSS 3.1
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CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Lifecycle Timeline
3
Analysis Generated
Apr 01, 2026 - 21:00 vuln.today
EUVD ID Assigned
Apr 01, 2026 - 21:00 euvd
EUVD-2026-18064
CVE Published
Apr 01, 2026 - 00:00 nvd
CRITICAL 9.1
Description
An issue was discovered in Mbed TLS 3.5.0 through 4.0.0. Client impersonation can occur while resuming a TLS 1.3 session.
Analysis
Mbed TLS versions 3.5.0 through 4.0.0 allow client impersonation during TLS 1.3 session resumption, enabling an attacker to assume the identity of a legitimate client when reestablishing a previously negotiated session. The vulnerability affects the session resumption mechanism in TLS 1.3 and permits information disclosure; no CVSS score or exploit status data is currently available from public sources.
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Priority Score
46
Low
Medium
High
Critical
KEV: 0
EPSS: +0.0
CVSS: +46
POC: 0
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External POC / Exploit Code
Leaving vuln.today
Destination URL
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