CVE-2026-25833
Published:April 01, 2026
Updated:May 23, 2026
Mbed TLS 3.5.0 to 3.6.5 fixed in 3.6.6 and 4.1.0 has a buffer overflow in the x509_inet_pton_ipv6() function
Affected Packages
mbedtls (CONAN):
Affected version(s) >=3.5.0 <3.6.6Fix Suggestion:
Update to version 3.6.6https://github.com/Mbed-TLS/mbedtls.git (GITHUB):
Affected version(s) =mbedtls-4.0.0 <mbedtls-4.1.0Fix Suggestion:
Update to version mbedtls-4.1.0https://github.com/Mbed-TLS/mbedtls.git (GITHUB):
Affected version(s) >=v3.5.0 <v3.6.6Fix Suggestion:
Update to version v3.6.6https://github.com/Mbed-TLS/mbedtls.git (GITHUB):
Affected version(s) >=mbedtls-3.5.0 <mbedtls-3.6.6Fix Suggestion:
Update to version mbedtls-3.6.6https://github.com/Mbed-TLS/mbedtls.git (GITHUB):
Affected version(s) =v4.0.0 <v4.1.0Fix Suggestion:
Update to version v4.1.0Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Stack-based Buffer Overflow
EPSS
Base Score:
0.05