VYPR

CWE-337

Predictable Seed in Pseudo-Random Number Generator (PRNG)

VariantDraft

Description

A Pseudo-Random Number Generator (PRNG) is initialized from a predictable seed, such as the process ID or system time.

The use of predictable seeds significantly reduces the number of possible seeds that an attacker would need to test in order to predict which random numbers will be generated by the PRNG.

Hierarchy (View 1000)

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CVEs mapped to this weakness (7)

  • CVE-2025-7770HigAug 6, 2025
    risk 0.57cvss epss 0.00

    Tigo Energy's CCA device is vulnerable to insecure session ID generation in their remote API. The session IDs are generated using a predictable method based on the current timestamp, allowing attackers to recreate valid session IDs. When combined with the ability to circumvent…

  • CVE-2025-55069HigSep 23, 2025
    risk 0.54cvss 8.3epss 0.00

    A predictable seed in pseudo-random number generator vulnerability has been discovered in firmware version 3.60 of the Click Plus PLC. The vulnerability relies on the fact that the software implements a predictable seed for its pseudo-random number generator, which compromises…

  • CVE-2025-20613LowAug 12, 2025
    risk 0.21cvss 3.3epss 0.00

    Predictable Seed in Pseudo-Random Number Generator (PRNG) in the firmware for some Intel(R) TDX may allow an authenticated user to potentially enable information disclosure via local access.

  • CVE-2026-26018Mar 6, 2026
    risk 0.00cvss epss 0.01

    CoreDNS is a DNS server that chains plugins. Prior to version 1.14.2, a denial of service vulnerability exists in CoreDNS's loop detection plugin that allows an attacker to crash the DNS server by sending specially crafted DNS queries. The vulnerability stems from the use of a…

  • CVE-2025-62710Oct 22, 2025
    risk 0.00cvss epss 0.00

    Sakai is a Collaboration and Learning Environment. Prior to versions 23.5 and 25.0, EncryptionUtilityServiceImpl initialized an AES256TextEncryptor password (serverSecretKey) using RandomStringUtils with the default java.util.Random. java.util.Random is a non‑cryptographic…

  • CVE-2024-7558Oct 2, 2024
    risk 0.00cvss epss 0.01

    JUJU_CONTEXT_ID is a predictable authentication secret. On a Juju machine (non-Kubernetes) or Juju charm container (on Kubernetes), an unprivileged user in the same network namespace can connect to an abstract domain socket and guess the JUJU_CONTEXT_ID value. This gives the…

  • CVE-2024-22194Jan 11, 2024
    risk 0.00cvss epss 0.00

    cdo-local-uuid project provides a specialized UUID-generating function that can, on user request, cause a program to generate deterministic UUIDs. An information leakage vulnerability is present in `cdo-local-uuid` at version `0.4.0`, and in `case-utils` in unpatched versions…