CVE-2026-34877_CVE-2026-34877

9.8 / 10

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Basic Information

ID CVE-2026-34877

Source mitre

Published Apr 2, 2026 at 00:00

Modified Apr 2, 2026 at 17:52

Affected Product

Vendor n/a

Product n/a

Version n/a

Affected Versions n/a n/a n/a

CWE Classification

CWE-250 CWE-502

References

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    "published": "2026-04-02T00:00:00.000Z",
    "modified": "2026-04-02T17:52:53.594Z",
    "type": "cve",
    "title": "CVE-2026-34877",
    "source": "mitre",
    "references": "https://mbed-tls.readthedocs.io/en/latest/security-advisories/\nhttps://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-serialized-data/",
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