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

PriorityP339high7.5CVSS 3.1

AVNACLPRNUINSUCNINAH

EPSS

0.31%

23.1th percentile

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

3 ranges

Vendor	Product	Version range	Fixed in
debian	mbedtls	—	—
trustedfirmware	mbed_tls	—	—
trustedfirmware	mbed_tls	>= 3.5.0 < 3.6.6	3.6.6

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

osv7.5HIGH

vendor_debian7.5HIGH

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