CVE-2025-52497

MediumCVSS 4.8/10Last 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.

Metrics

CVSS 3.1 4.8/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L

Weakness enumeration

CWE-193

Affected software

Vendor	Product	Versions
Mbed	mbedtls	< 3.6.4

References

Timeline

Published: Jul 4, 2025
Last modified: Jun 17, 2026
NVD status: Modified

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