Name: CVE-2025-52497: Off-by-one Error
Creator: Rapid7
Published: 2025-07-04T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2025-52497, CVSS 4.8, EPSS 0.00058

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.

CVSS Details

CVSS 3.1 Base Score: 4.8
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Alpine Linux	—	Upgrade mbedtls3Upgrade mbedtls	Aug 8, 2025	Jul 4, 2025
Debian	—	Upgrade mbedtls	Jul 7, 2025	Jul 4, 2025
Ubuntu	—	Upgrade libmbedtls14t64 (Ubuntu Pro)Upgrade libmbedtls10 (Ubuntu Pro)Upgrade libmbedtls-dev (Ubuntu Pro)Upgrade libmbedx509-1t64 (Ubuntu Pro)Upgrade libmbedcrypto3 (Ubuntu Pro)Upgrade libmbedtls12 (Ubuntu Pro)Upgrade libmbedcrypto7 (Ubuntu Pro)Upgrade libmbedx509-1 (Ubuntu Pro)Upgrade libmbedtls14 (Ubuntu Pro)Upgrade libmbedx509-0 (Ubuntu Pro)Upgrade libmbedcrypto1 (Ubuntu Pro)Upgrade libmbedcrypto7t64 (Ubuntu Pro)	Mar 27, 2026	Mar 25, 2026

Prioritize with Active Threat Intelligence

With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.

Explore Intelligence Hub

MDR Buyer's Guide

Global Threat Landscape Report

Grow your business

CVSS Details

Covered by Rapid7

Prioritize with Active Threat Intelligence