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    CVE-2024-30166

    In Mbed TLS 3.3.0 through 3.5.2 before 3.6.0, a malicious client can cause information disclosure or a denial of service because of a stack buffer over-read (of less than 256 bytes) in a TLS 1.3 server via a TLS 3.1 ClientHello.

    Published:Apr 3, 2024
    Last Modified:Jun 5, 2026
    EPS:Apr 3, 2024
    EPSS Score:0.00348
    CVSS Score:9.1

    Affected Products

    Vendor
    Arm
    Product
    Mbed Tls
    Vendor
    Trustedfirmware
    Product
    Mbed Tls

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-121 Stack-based Buffer Overflow

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-34877 (CVSS 9.8) — An issue was discovered in Mbed TLS versions from 2.19.0 up to 3.6.5, Mbed TLS 4.0.0. Insufficient protection …
    CVE-2026-34872 (CVSS 9.1) — An issue was discovered in Mbed TLS 3.5.x and 3.6.x through 3.6.5 and TF-PSA-Crypto 1.0. There is a lack of co…
    CVE-2026-34871 (CVSS 6.7) — An issue was discovered in Mbed TLS before 3.6.6 and 4.x before 4.1.0 and TF-PSA-Crypto before 1.1.0. There is…
    CVE-2025-66442 (CVSS 5.1) — In Mbed TLS through 4.0.0, there is a compiler-induced timing side channel (in RSA and CBC/ECB decryption) tha…
    CVE-2026-25835 (CVSS 7.7) — Mbed TLS before 3.6.6 and TF-PSA-Crypto before 1.1.0 misuse seeds in a Pseudo-Random Number Generator (PRNG).…
    CVE-2025-59438 (CVSS 5.3) — Mbed TLS through 3.6.4 has an Observable Timing Discrepancy.…
    CVE-2025-54764 (CVSS 6.2) — Mbed TLS before 3.6.5 allows a local timing attack against certain RSA operations, and direct calls to mbedtls…
    CVE-2025-48965 (CVSS 4) — Mbed TLS before 3.6.4 has a NULL pointer dereference because mbedtls_asn1_store_named_data can trigger conflic…
    CVE-2025-47917 (CVSS 8.9) — Mbed TLS before 3.6.4 allows a use-after-free in certain situations of applications that are developed in acco…
    CVE-2025-52496 (CVSS 7.8) — Mbed TLS before 3.6.4 has a race condition in AESNI detection if certain compiler optimizations occur. An atta…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High