# CVE-2026-25835: mbedtls: Mbed TLS before 3.6.6 and TF-PSA-Crypto before 1.1.0 misuse seeds in a Pseudo-Random Number Generator (PRNG).

CVE-2026-25835 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-25835, released April 1, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-25835
- Priority: High
- CVSS: 7.7 (high)
- EPSS: 0.0018
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 1, 2026

## Description

Mbed TLS before 3.6.6 and TF-PSA-Crypto before 1.1.0 misuse seeds in a Pseudo-Random Number Generator (PRNG).

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | mbedtls Debian 13.5 (trixie) | 3.6.6-0.1~deb13u1 | [DEBIAN-CVE-2026-25835](https://patchblox.com/security/data/fix/linux/debian-cve-2026-25835.md) | Apr 1, 2026 |
| Linux | mbedtls Debian 14 | 3.6.6-0.1 | [DEBIAN-CVE-2026-25835](https://patchblox.com/security/data/fix/linux/debian-cve-2026-25835.md) | Apr 1, 2026 |
| Linux | mbedtls opensuse-leap 16.0 | 3.6.6-bp160.1.1 | [OPENSUSE-SU-2026:21144-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21144-1.md) | Jun 22, 2026 |
| Linux | ovmf sles 16.0 | 202502-160000.5.1 | [SUSE-SU-2026:22016-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22016-1.md) | Jun 2, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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