EUVD-2026-17967
2026-04-01
mitre
6.5
CVSS 3.1
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CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low
Lifecycle Timeline
4
Patch Released
Apr 10, 2026 - 08:30 nvd
Patch available
Analysis Generated
Apr 01, 2026 - 18:15 vuln.today
EUVD ID Assigned
Apr 01, 2026 - 18:15 euvd
EUVD-2026-17967
CVE Published
Apr 01, 2026 - 00:00 nvd
MEDIUM 6.5
Description
Mbed TLS v3.3.0 up to 3.6.5 and 4.0.0 allows Algorithm Downgrade.
Analysis
Mbed TLS versions 3.3.0 through 3.6.5 and 4.0.0 are vulnerable to algorithm downgrade attacks via signature algorithm injection, allowing attackers to force the use of weaker cryptographic algorithms during TLS handshakes. This information disclosure vulnerability affects all applications using the affected Mbed TLS library versions and could enable attackers to compromise the confidentiality of encrypted communications by downgrading to algorithms with known weaknesses.
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Priority Score
33
Low
Medium
High
Critical
KEV: 0
EPSS: +0.0
CVSS: +32
POC: 0
Vendor Status
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External POC / Exploit Code
Leaving vuln.today
Destination URL
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