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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 stepped, especially Intel SGX.

🗓️ 04 Sep 2025 03:20:13Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 4 Views

Mbed TLS 2.24.0 base64 PEM decoding side-channel flaw exposes RSA keys to system attackers in single-stepping enclaves.

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04 Sep 2025 03:20Current
7High risk
Vulners AI Score7
CVSS 24
CVSS 3.14.9
EPSS0.01358
4