CVE-2025-66442
Medium · 5.1CVSS
5.1
EPSS
0.3%
Published
Apr 1, 2026
CISA due date
—
The record
In Mbed TLS through 4.0.0, there is a compiler-induced timing side channel (in RSA and CBC/ECB decryption) that only occurs with LLVM's select-optimize feature. TF-PSA-Crypto through 1.0.0 is also affected.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
Related vulnerabilities
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- CVE-2026-6478 Covert timing channel in comparison of MD5-hashed password in PostgreSQL authentication… CWE-385
- CVE-2026-5598 Covert timing channel vulnerability in Legion of the Bouncy Castle Inc. CWE-385
- CVE-2025-69893 A side-channel vulnerability exists in the implementation of BIP-39 mnemonic processing… CWE-385
- GHSA-6pfc-6m7w-m8fx OpenClaw has a gateway exec allowlist allow-always bypass via unregistered… CWE-385
- CVE-2024-13176 Issue summary: A timing side-channel which could potentially allow recovering the private… CWE-385
- CVE-2025-0306 A vulnerability was found in Ruby. CWE-385