CVE-2025-49087

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 v3 4.0 MEDIUM

4.0^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-5.md	Exploit Third Party Advisory
https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:trustedfirmware:mbed_tls:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-07-20 19:15

Updated : 2026-06-17 09:30

NVD link : CVE-2025-49087

Mitre link : CVE-2025-49087

CVE.ORG link : CVE-2025-49087

JSON object : View

Products Affected

trustedfirmware

mbed_tls

CWE

CWE-385

Covert Timing Channel

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