Is CVE-2025-27810 actively exploited?

CVE-2025-27810 has no public evidence of in-the-wild exploitation as of 2025-10-30.

What is the CVSS score for CVE-2025-27810?

CVE-2025-27810 has a CVSS score of 5.4 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N.

How do I patch CVE-2025-27810?

Patch guidance is available from arm security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-27810.

Which products are affected by CVE-2025-27810?

2 products: arm mbed tls, arm mbed tls.

CVE-2025-27810 - remediation guidance & executive summary

Description

Mbed TLS before 2.28.10 and 3.x before 3.6.3, in some cases of failed memory allocation or hardware errors, uses uninitialized stack memory to compose the TLS Finished message, potentially leading to authentication bypasses such as replays.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack Vector: network
Complexity: high
Privileges: none
User Action: none
Scope: changed
Confidentiality: low
Integrity: low
Availability: none
Weaknesses: CWE-908

Metadata

Primary Vendor: ARM
Published: 3/25/2025
Last Modified: 10/30/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2025-27810

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary