CVE-2025-49087
Published:July 20, 2025
Updated:April 23, 2026
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.
Affected Packages
mbedtls (CONAN):
Affected version(s) >=3.6.1 <3.6.4Fix Suggestion:
Update to version 3.6.4https://github.com/Mbed-TLS/mbedtls.git (GITHUB):
Affected version(s) >=mbedtls-3.6.1 <mbedtls-3.6.4Fix Suggestion:
Update to version mbedtls-3.6.4https://github.com/Mbed-TLS/mbedtls.git (GITHUB):
Affected version(s) >=v3.6.1 <v3.6.4Fix Suggestion:
Update to version v3.6.4Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Covert Timing Channel
EPSS
Base Score:
0.14
