In the OpenSSL compatibility layer implementation, the function RAND_poll() was not behaving as expected and leading to the potential for predictable values returned from RAND_bytes() after fork() is called. This can lead to weak or predictable random numbers generated in applications that are both using RAND_bytes() and doing fork() operations. This only affects applications explicitly calling RAND_bytes() after fork() and does not affect any internal TLS operations. Although RAND_bytes() documentation in OpenSSL calls out not being safe for use with fork() without first calling RAND_poll(), an additional code change was also made in wolfSSL to make RAND_bytes() behave similar to OpenSSL after a fork() call without calling RAND_poll(). Now the Hash-DRBG used gets reseeded after detecting running in a new process. If making use of RAND_bytes() and calling fork() we recommend updating to the latest version of wolfSSL. Thanks to Per Allansson from Appgate for the report.
| Reporter | Title | Published | Views | Family All 19 |
|---|---|---|---|---|
| CVE-2025-7394 | 18 Jul 202522:34 | – | alpinelinux | |
| CVE-2025-7394 | 19 Jul 202502:55 | – | circl | |
| OpenSSL 安全漏洞 | 18 Jul 202500:00 | – | cnnvd | |
| CVE-2025-7394 | 18 Jul 202522:34 | – | cve | |
| CVE-2025-7394 | 18 Jul 202522:34 | – | cvelist | |
| CVE-2025-7394 | 18 Jul 202522:34 | – | debiancve | |
| EUVD-2025-21938 | 3 Oct 202520:07 | – | euvd | |
| CVE-2025-7394 | 18 Jul 202523:15 | – | nvd | |
| CVE-2025-7394 | 18 Jul 202522:34 | – | osv | |
| DEBIAN-CVE-2025-7394 | 18 Jul 202523:15 | – | osv |
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18 Feb 2026 10:19Current
7High risk
Vulners AI Score7
CVSS 3.19.8
CVSS 47
EPSS0.00387
SSVC