CVE-2025-3895
Raw vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XSummary
CVE-2025-3895 is a critical-severity Small Space of Random Values (CWE-334) vulnerability in Cert (inferred from references). Its CVSS base score is 9.1 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Brute Force (T1110); ranked at the 36th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to IA-5 (Authenticator Management) and SC-12 (Cryptographic Key Establishment and Management) — see the control section below for these in your framework.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-27942
- 🇵🇱 CERT-PL: cert.pl
Vulnerability Data
Token used for resetting passwords in MegaBIP software are generated using a small space of random values combined with a queryable value. It allows an unauthenticated attacker who know user login names to brute force these tokens and change account…
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passwords (including these belonging to administrators). Version 5.20 of MegaBIP fixes this issue.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
IA-5 requires management of authenticator strength which includes ensuring random authenticators have adequate value space.
SC-12 requires proper cryptographic key generation which structurally demands a sufficiently large random value space.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Secure SDLC practices directly require cryptographically strong RNGs with adequate value space, while fixing only this CWE addresses one narrow aspect of the control.
Authentication mechanisms often depend on random values (nonces, tokens), so the control can reduce exposure but eliminating the CWE does not achieve authentication outcomes.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Cryptographic controls require adequate key/seed entropy, directly mitigating small random-value spaces.
Security testing can detect insufficient randomness in tokens, session IDs, or keys.
Secure-coding standards explicitly call for cryptographically strong random number generation.
Secure authentication mechanisms often rely on unpredictable tokens or nonces, so weak randomness undermines them.