Vulnerability 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
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Arm | Mbed Tls | >= 3.5.0, < 3.6.6 |
Related Weaknesses (CWE)
References
- https://mbed-tls.readthedocs.io/en/latest/security-advisories/Vendor Advisory
- https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-aVendor Advisory
FAQ
What is CVE-2026-25833?
CVE-2026-25833 is a vulnerability with a CVSS score of 7.5 (HIGH). 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
How severe is CVE-2026-25833?
CVE-2026-25833 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-25833?
Check the references section above for vendor advisories and patch information. Affected products include: Arm Mbed Tls.