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CVE Vendors Products Updated CVSS v3.1
CVE-2026-25833 2 Mbed-tls, Trustedfirmware 2 Mbedtls, Mbed Tls 2026-06-05 7.5 High
Mbed TLS 3.5.0 to 3.6.5 fixed in 3.6.6 and 4.1.0 has a buffer overflow in the x509_inet_pton_ipv6() function
CVE-2026-34876 2 Mbed-tls, Trustedfirmware 2 Mbedtls, Mbed Tls 2026-06-05 7.5 High
An issue was discovered in Mbed TLS 3.x before 3.6.6. An out-of-bounds read vulnerability in mbedtls_ccm_finish() in library/ccm.c allows attackers to obtain adjacent CCM context data via invocation of the multipart CCM API with an oversized tag_len parameter. This is caused by missing validation of the tag_len parameter against the size of the internal 16-byte authentication buffer. The issue affects the public multipart CCM API in Mbed TLS 3.x, where mbedtls_ccm_finish() can be invoked directly by applications. In Mbed TLS 4.x versions prior to the fix, the same missing validation exists in the internal implementation; however, the function is not exposed as part of the public API. Exploitation requires application-level invocation of the multipart CCM API.
CVE-2026-34873 2 Mbed-tls, Trustedfirmware 2 Mbedtls, Mbed Tls 2026-06-05 9.1 Critical
An issue was discovered in Mbed TLS 3.5.0 through 4.0.0. Client impersonation can occur while resuming a TLS 1.3 session.
CVE-2015-8036 5 Debian, Fedoraproject, Opensuse and 2 more 5 Debian Linux, Fedora, Opensuse and 2 more 2026-06-05 N/A
Heap-based buffer overflow in ARM mbed TLS (formerly PolarSSL) 1.3.x before 1.3.14 and 2.x before 2.1.2 allows remote SSL servers to cause a denial of service (client crash) and possibly execute arbitrary code via a long session ticket name to the session ticket extension, which is not properly handled when creating a ClientHello message to resume a session. NOTE: this identifier was SPLIT from CVE-2015-5291 per ADT3 due to different affected version ranges.
CVE-2018-9989 3 Arm, Debian, Trustedfirmware 3 Mbed Tls, Debian Linux, Mbed Tls 2026-06-05 7.5 High
ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in ssl_parse_server_psk_hint() that could cause a crash on invalid input.
CVE-2018-9988 3 Arm, Debian, Trustedfirmware 3 Mbed Tls, Debian Linux, Mbed Tls 2026-06-05 7.5 High
ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in ssl_parse_server_key_exchange() that could cause a crash on invalid input.
CVE-2025-27809 2 Arm, Trustedfirmware 2 Mbed Tls, Mbed Tls 2026-06-05 5.4 Medium
Mbed TLS before 2.28.10 and 3.x before 3.6.3, on the client side, accepts servers that have trusted certificates for arbitrary hostnames unless the TLS client application calls mbedtls_ssl_set_hostname.
CVE-2026-25834 2 Mbed-tls, Trustedfirmware 2 Mbedtls, Mbed Tls 2026-06-05 6.5 Medium
Mbed TLS v3.3.0 up to 3.6.5 and 4.0.0 allows Algorithm Downgrade.
CVE-2024-45159 1 Trustedfirmware 1 Mbed Tls 2026-06-05 9.8 Critical
An issue was discovered in Mbed TLS 3.x before 3.6.1. With TLS 1.3, when a server enables optional authentication of the client, if the client-provided certificate does not have appropriate values in if keyUsage or extKeyUsage extensions, then the return value of mbedtls_ssl_get_verify_result() would incorrectly have the MBEDTLS_X509_BADCERT_KEY_USAGE and MBEDTLS_X509_BADCERT_KEY_USAGE bits clear. As a result, an attacker that had a certificate valid for uses other than TLS client authentication would nonetheless be able to use it for TLS client authentication. Only TLS 1.3 servers were affected, and only with optional authentication (with required authentication, the handshake would be aborted with a fatal alert).
CVE-2026-34874 2 Mbed-tls, Trustedfirmware 2 Mbedtls, Mbed Tls 2026-06-05 7.5 High
An issue was discovered in Mbed TLS through 3.6.5 and 4.x through 4.0.0. There is a NULL pointer dereference in distinguished name parsing that allows an attacker to write to address 0.
CVE-2022-46393 3 Arm, Fedoraproject, Trustedfirmware 3 Mbed Tls, Fedora, Mbed Tls 2026-06-05 9.8 Critical
An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0. There is a potential heap-based buffer overflow and heap-based buffer over-read in DTLS if MBEDTLS_SSL_DTLS_CONNECTION_ID is enabled and MBEDTLS_SSL_CID_IN_LEN_MAX > 2 * MBEDTLS_SSL_CID_OUT_LEN_MAX.
CVE-2022-46392 3 Arm, Fedoraproject, Trustedfirmware 3 Mbed Tls, Fedora, Mbed Tls 2026-06-05 5.3 Medium
An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0. An adversary with access to precise enough information about memory accesses (typically, an untrusted operating system attacking a secure enclave) can recover an RSA private key after observing the victim performing a single private-key operation, if the window size (MBEDTLS_MPI_WINDOW_SIZE) used for the exponentiation is 3 or smaller.
CVE-2023-43615 4 Arm, Fedoraproject, Mbed and 1 more 4 Mbed Tls, Fedora, Mbedtls and 1 more 2026-06-05 7.5 High
Mbed TLS 2.x before 2.28.5 and 3.x before 3.5.0 has a Buffer Overflow.
CVE-2025-49087 2 Mbed, Trustedfirmware 2 Mbedtls, Mbed Tls 2026-06-05 4 Medium
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.
CVE-2024-30166 2 Arm, Trustedfirmware 2 Mbed Tls, Mbed Tls 2026-06-05 9.1 Critical
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.
CVE-2024-28960 4 Arm, Fedoraproject, Mbed and 1 more 6 Mbed Crypto, Mbed Tls, Fedora and 3 more 2026-06-05 8.2 High
An issue was discovered in Mbed TLS 2.18.0 through 2.28.x before 2.28.8 and 3.x before 3.6.0, and Mbed Crypto. The PSA Crypto API mishandles shared memory.
CVE-2024-23775 2 Arm, Trustedfirmware 2 Mbed Tls, Mbed Tls 2026-06-05 7.5 High
Integer Overflow vulnerability in Mbed TLS 2.x before 2.28.7 and 3.x before 3.5.2, allows attackers to cause a denial of service (DoS) via mbedtls_x509_set_extension().
CVE-2024-23744 1 Trustedfirmware 1 Mbed Tls 2026-06-05 7.5 High
An issue was discovered in Mbed TLS 3.5.1. There is persistent handshake denial if a client sends a TLS 1.3 ClientHello without extensions.
CVE-2024-23170 2 Arm, Trustedfirmware 2 Mbed Tls, Mbed Tls 2026-06-05 5.5 Medium
An issue was discovered in Mbed TLS 2.x before 2.28.7 and 3.x before 3.5.2. There was a timing side channel in RSA private operations. This side channel could be sufficient for a local attacker to recover the plaintext. It requires the attacker to send a large number of messages for decryption, as described in "Everlasting ROBOT: the Marvin Attack" by Hubert Kario.
CVE-2023-45199 2 Mbed, Trustedfirmware 2 Mbedtls, Mbed Tls 2026-06-05 9.8 Critical
Mbed TLS 3.2.x through 3.4.x before 3.5 has a Buffer Overflow that can lead to remote Code execution.