Out-of-bounds Read in Mbed Mbedtls
CVE-2025-49601
In MbedTLS 3.3.0 before 3.6.4, mbedtls_lms_import_public_key does not check that the input buffer is at least 4 bytes before reading a 32-bit field, allowing a possible out-of-bounds read on truncated input. Specifically, an out-of-bounds…
Vulnerability class: Buffer Overflow
EPSS: 0.003 (49.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L.
Affected products
- Mbed Mbedtls — versions 3.3.0
- Trustedfirmware Mbed_tls
Weakness classification (CWE)
References
- cve@mitre.org (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-49601?
- CVE-2025-49601 is a medium-severity vulnerability in Mbed Mbedtls, classified under Out-of-bounds Read. CVSS score: 4.8/10. Published 2025-07-04.
- How severe is CVE-2025-49601?
- Medium severity. CVSS v3 base score is 4.8 out of 10.