CVE-2025-52497
Medium
Description
Mbed TLS before 3.6.4 has a PEM parsing one-byte heap-based buffer underflow, in mbedtls_pem_read_buffer and two mbedtls_pk_parse functions, via untrusted PEM input.
SeverityMedium
CVSS4.8
Exploit probability—
Product
Arm Mbed Tls
PublishedJul 4, 2025
First seenJul 4, 2025
Weakness typeCWE-193CWE-193
How to fix
Update
- arm mbed_tls3.6.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| arm mbed_tls | v < 3.6.4 | 3.6.4 |
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