CVE-2026-25833

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-25833
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

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://mbed-tls.readthedocs.io/en/latest/security-advisories/ Vendor Advisory
https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-inet-pton/ Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*
cpe:2.3:a:arm:mbed_tls:4.0.0:*:*:*:*:*:*:*
History

06 Apr 2026, 14:18

Type Values Removed Values Added
First Time Arm
Arm mbed Tls
References () https://mbed-tls.readthedocs.io/en/latest/security-advisories/ - () https://mbed-tls.readthedocs.io/en/latest/security-advisories/ - Vendor Advisory
References () https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-inet-pton/ - () https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-inet-pton/ - Vendor Advisory
CPE cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*
cpe:2.3:a:arm:mbed_tls:4.0.0:*:*:*:*:*:*:*

01 Apr 2026, 20:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.5
CWE CWE-121

01 Apr 2026, 19:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-04-01 19:16

Updated : 2026-04-06 14:18

NVD link : CVE-2026-25833

Mitre link : CVE-2026-25833

CVE.ORG link : CVE-2026-25833

JSON object : View

Products Affected

arm

  • mbed_tls
CWE
CWE-121

Stack-based Buffer Overflow