CVE-2026-25835
High
Description
Mbed TLS before 3.6.6 and TF-PSA-Crypto before 1.1.0 misuse seeds in a Pseudo-Random Number Generator (PRNG).
SeverityHigh
CVSS7.7
Exploit probability—
Product
Arm Mbed Tls
PublishedApr 1, 2026
First seenApr 1, 2026
Weakness typeCWE-335CWE-335
How to fix
Update
- arm mbed_tls3.6.6 or later
- trustedfirmware tf-psa-crypto1.1.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| arm mbed_tls | 2.18.0 ≤ v < 3.6.6 | 3.6.6 |
| trustedfirmware mbed_tls | 4.0.0 | — |
| trustedfirmware tf-psa-crypto | v < 1.1.0 | 1.1.0 |
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