CVE-2025-52497

Published Jul 4, 2025

Last updated a day ago

CVSS medium 4.8

Overview

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.
Source: cve@mitre.org
NVD status: Analyzed

Risk scores

CVSS 3.1

Type: Secondary
Base score: 4.8
Impact score: 2.5
Exploitability score: 2.2
Vector string: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
Severity: MEDIUM

Weaknesses

cve@mitre.org: CWE-193

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "DB29564B-3A9D-4AC0-8F39-052B7A555C19",
            "versionEndExcluding": "3.6.4"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

References

Sources include official advisories and independent security research.