JLSEC-2025-215 In Mbed TLS before 2.28.0 and 3.x before 3.1.0, `psa_cipher_generate_iv` and `psa_cipher_encrypt`...

In Mbed TLS before 2.28.0 and 3.x before 3.1.0, psaciphergenerateiv and psacipherencrypt allow policy bypass or oracle-based decryption when the output buffer is at memory locations accessible to an untrusted application...

JLSEC-2025-218 An issue was discovered in Mbed TLS before 2.28.1 and 3.x before 3.2.0

An issue was discovered in Mbed TLS before 2.28.1 and 3.x before 3.2.0. In some configurations, an unauthenticated attacker can send an invalid ClientHello message to a DTLS server that causes a heap-based buffer over-read of up to 255 bytes. This can cause a server crash or possibly information...

JLSEC-2025-208 An issue was discovered in Arm Mbed TLS before 2.24.0

An issue was discovered in Arm Mbed TLS before 2.24.0. It incorrectly uses a revocationDate check when deciding whether to honor certificate revocation via a CRL. In some situations, an attacker can exploit this by changing the local clock...

JLSEC-2025-231 Mbed TLS before 3.6.4 allows a use-after-free in certain situations of applications that are...

Mbed TLS before 3.6.4 allows a use-after-free in certain situations of applications that are developed in accordance with the documentation. The function mbedtlsx509stringtonames takes a head argument that is documented as an output argument. The documentation does not suggest that the function...

PT-2025-48530

Vulnerability Mbed TLS's modular inversion routine and GCD routine are vulnerable to local timing attacks in a number of settings discussed below. These functions are used in RSA, making the following operations vulnerable in all configurations: - RSA key generation with any API mbedtls rsa gen k...

PT-2025-48500

A Lucky 13 timing side channel in mbedtls ssl decrypt buf in library/ssl msg.c in Trusted Firmware Mbed TLS through 2.23.0 allows an attacker to recover secret key information. This affects CBC mode because of a computed time difference based on a padding length...

PT-2025-48518

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...

PT-2025-48516

An issue was discovered in Mbed TLS before 2.28.1 and 3.x before 3.2.0. In some configurations, an unauthenticated attacker can send an invalid ClientHello message to a DTLS server that causes a heap-based buffer over-read of up to 255 bytes. This can cause a server crash or possibly information...

PT-2025-48503

An issue was discovered in Arm Mbed TLS before 2.23.0. A side channel allows recovery of an ECC private key, related to mbedtls ecp check pub priv, mbedtls pk parse key, mbedtls pk parse keyfile, mbedtls ecp mul, and mbedtls ecp mul restartable...

PT-2025-48508

An issue was discovered in Mbed TLS before 2.25.0 and before 2.16.9 LTS and before 2.7.18 LTS. The calculations performed by mbedtls mpi exp mod are not limited; thus, supplying overly large parameters could lead to denial of service when generating Diffie-Hellman key pairs...

PT-2025-48509

An issue was discovered in Mbed TLS before 2.24.0 and before 2.16.8 LTS and before 2.7.17 LTS. There is missing zeroization of plaintext buffers in mbedtls ssl read to erase unused application data from memory...

PT-2025-48498

Arm Mbed TLS before 2.16.5 allows attackers to obtain sensitive information an RSA private key by measuring cache usage during an import...

PT-2025-48519

Use of a Broken or Risky Cryptographic Algorithm in the function mbedtls mpi exp mod in lignum.c in Mbed TLS Mbed TLS all versions before 3.0.0, 2.27.0 or 2.16.11 allows attackers with access to precise enough timing and memory access information typically an untrusted operating system attacking ...

PT-2025-48507

An issue was discovered in Arm Mbed TLS before 2.24.0. mbedtls x509 crl parse der has a buffer over-read of one byte...

PT-2025-48531

Vulnerability In symmetric encryption modes that involve padding, if an attacker can submit ciphertexts for decryption and learn whether the padding is valid, this provides partial information about the plaintext. If the attacker can also submit input that the victim encrypts together with a...

PT-2025-48514

In Mbed TLS before 3.1.0, psa aead generate nonce allows policy bypass or oracle-based decryption when the output buffer is at memory locations accessible to an untrusted application...

PT-2025-48521

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, a...

PT-2025-48511

An issue was discovered in Mbed TLS before 2.25.0 and before 2.16.9 LTS and before 2.7.18 LTS. A NULL algorithm parameters entry looks identical to an array of REAL size zero and thus the certificate is considered valid. However, if the parameters do not match in any way, then the certificate...

PT-2025-48501

In Trusted Firmware Mbed TLS 2.24.0, a side-channel vulnerability in base64 PEM file decoding allows system-level administrator attackers to obtain information about secret RSA keys via a controlled-channel and side-channel attack on software running in isolated environments that can be single...

PT-2025-48499

An issue was discovered in Arm Mbed TLS before 2.16.6 and 2.7.x before 2.7.15. An attacker that can get precise enough side-channel measurements can recover the long-term ECDSA private key by 1 reconstructing the projective coordinate of the result of scalar multiplication by exploiting side...