Is CVE-2025-52497 actively exploited?

CVE-2025-52497 has no public evidence of in-the-wild exploitation as of 2025-11-03.

What is the CVSS score for CVE-2025-52497?

CVE-2025-52497 has a CVSS score of 4.8 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L.

How do I patch CVE-2025-52497?

Patch guidance is available from arm security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-52497.

CVE-2025-52497 - remediation guidance & executive summary

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
Attack Vector: network
Complexity: high
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: low
Integrity: none
Availability: low
Weaknesses: CWE-193

Metadata

Primary Vendor: ARM
Published: 7/4/2025
Last Modified: 11/3/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2025-52497

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary