| Name | CVE-2026-25833 |
| Description | 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 |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1133841 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| mbedtls (PTS) | bullseye | 2.16.9-0.1 | vulnerable |
| bullseye (security) | 2.16.9-0.1+deb11u3 | vulnerable |
| bookworm | 2.28.3-1 | vulnerable |
| trixie | 3.6.5-0.1~deb13u1 | vulnerable |
| forky, sid | 3.6.5-0.1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| mbedtls | source | (unstable) | (unfixed) | | | 1133841 |
Notes
https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-inet-pton/