Cyber Posture

CVE-2026-6659

High

Published: 08 May 2026

Published
08 May 2026
Modified
08 May 2026
KEV Added
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Patch
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CVSS Score 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0001 2.1th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-6659 is a high-severity PRNG (CWE-338) vulnerability. Its CVSS base score is 7.5 (High).

Operationally, ranked at the 2.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

Threat & Defense Details

Likely Mitigating ControlsAI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

AT-5 Contacts with Security Groups and Associations
addresses: CWE-338

Security associations share details on cryptographically weak PRNGs, helping avoid their implementation in security-critical functions.

SC-12 Cryptographic Key Establishment and Management
addresses: CWE-338

Cryptographic key management standards require cryptographically strong PRNGs for key material, blocking use of weak generators.

NVD Description

Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts. The built-in rand function is predictable, and unsuitable for cryptography.

Deeper analysisAI

Automated synthesis unavailable for this CVE.

Details

CWE(s)
CWE-338

Affected Products

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PasswdMD5
inferred from references and description; NVD did not file a CPE for this CVE

CVEs Like This One

CVE-2025-40905Shared CWE-338
CVE-2026-25726Shared CWE-338
CVE-2024-57854Shared CWE-338
CVE-2024-40762Shared CWE-338
CVE-2024-58041Shared CWE-338
CVE-2025-66630Shared CWE-338
CVE-2026-5088Shared CWE-338
CVE-2025-15578Shared CWE-338
CVE-2025-15618Shared CWE-338
CVE-2025-40920Shared CWE-338

References