Unrated severityNVD Advisory· Published Jul 4, 2025· Updated Nov 3, 2025

CVE-2025-52497

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.

Affected products

Mbed TLS/MbedTLSllm-fuzzy
Range: <3.6.4
Mbed/mbedtlsv5
Range: 0

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-2.mdmitre

News mentions

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