CVE-2025-52497

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CVSS 3.1

4.8 medium

EPSS

<1%p20

Published

Jul 4, 2025 (Jul 4, 2025)

Modified

Jun 17, 2026

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.

Vendors: arm
Products: mbed tls
Weakness: CWE-193
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L

NVD CVE.org GitHub PoCs EPSS (0.3%)

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