Description

An issue was discovered in Mbed TLS versions from 2.19.0 up to 3.6.5, Mbed TLS 4.0.0. Insufficient protection of serialized SSL context or session structures allows an attacker who can modify the serialized structures to induce memory corruption, leading to arbitrary code execution. This is caused by Incorrect Use of Privileged APIs.

INFO

Published Date :

2026-04-02T00:00:00.000Z

Last Modified :

2026-04-02T17:52:53.594Z

Source :

mitre
AFFECTED PRODUCTS

The following products are affected by CVE-2026-34877 vulnerability.

Vendors Products
Arm
  • Mbed Tls
Mbed
  • Mbedtls
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-34877.

URL Resource
https://mbed-tls.readthedocs.io/en/latest/security-advisories/ cve-icon cve-icon
https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-serialized-data/ cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact