Is CVE-2025-49087 actively exploited?

CVE-2025-49087 has no public evidence of in-the-wild exploitation as of 2025-08-07.

What is the CVSS score for CVE-2025-49087?

CVE-2025-49087 has a CVSS score of 4 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N.

How do I patch CVE-2025-49087?

Patch guidance is available from arm security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-49087.

CVE-2025-49087 - remediation guidance & executive summary

Description

In Mbed TLS 3.6.1 through 3.6.3 before 3.6.4, a timing discrepancy in block cipher padding removal allows an attacker to recover the plaintext when PKCS#7 padding mode is used.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
Attack Vector: network
Complexity: high
Privileges: none
User Action: none
Scope: changed
Confidentiality: low
Integrity: none
Availability: none
Weaknesses: CWE-385

Metadata

Primary Vendor: ARM
Published: 7/20/2025
Last Modified: 8/7/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2025-49087

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary