Mbed TLS before 2.28.10 and 3.x before 3.6.3, in some cases of failed memory allocation or hardware errors, uses uninitialized stack memory to compose the TLS Finished message, potentially leading to authentication bypasses such as replays.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade mbedtls3Upgrade mbedtls2Upgrade mbedtls | Aug 8, 2025 | Mar 25, 2025 |
| Debian | — | Upgrade mbedtls | May 15, 2025 | Mar 25, 2025 |
| Ubuntu | — | Upgrade libmbedx509-1t64 (Ubuntu Pro)Upgrade libmbedtls-dev (Ubuntu Pro)Upgrade libmbedcrypto3 (Ubuntu Pro)Upgrade libmbedcrypto7t64 (Ubuntu Pro)Upgrade libmbedtls12 (Ubuntu Pro)Upgrade libmbedtls10 (Ubuntu Pro)Upgrade libmbedtls14 (Ubuntu Pro)Upgrade libmbedtls14t64 (Ubuntu Pro)Upgrade libmbedx509-0 (Ubuntu Pro)Upgrade libmbedcrypto7 (Ubuntu Pro)Upgrade libmbedcrypto1 (Ubuntu Pro)Upgrade libmbedx509-1 (Ubuntu Pro) | Mar 27, 2026 | Mar 25, 2026 |
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub