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CVE-2021-36647
Published: Jan 17, 2023
Modified: Nov 3, 2025
PUBLISHED
Description
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 a secure enclave such as SGX or the TrustZone secure world) to recover the private keys used in RSA.
| Vendor | Product | Versions |
|---|---|---|
n/a | n/a | affected n/a |
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