EUVD-2026-18003
GHSA-5jpv-5p2x-4fwv
7.5
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:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Lifecycle Timeline
3
Analysis Generated
Apr 01, 2026 - 19:00 vuln.today
EUVD ID Assigned
Apr 01, 2026 - 19:00 euvd
EUVD-2026-18003
CVE Published
Apr 01, 2026 - 00:00 nvd
HIGH 7.5
Description
An issue was discovered in Mbed TLS through 3.6.5 and 4.x through 4.0.0. There is a NULL pointer dereference in distinguished name parsing that allows an attacker to write to address 0.
Analysis
NULL pointer dereference in Mbed TLS distinguished name (X.509) parsing allows remote attackers to trigger a denial of service by writing to address 0, affecting Mbed TLS versions 3.6.5 and earlier, and 4.0.0. The vulnerability is reachable during X.509 certificate processing and does not require authentication. …
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Priority Score
38
Low
Medium
High
Critical
KEV: 0
EPSS: +0.1
CVSS: +38
POC: 0
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External POC / Exploit Code
Leaving vuln.today
Destination URL
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