CVE-2025-20094
Hummingheads Defense Platform ≤ 3.9.51.0
Raw vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HSummary
CVE-2025-20094 is a high-severity Shatter (CWE-422) vulnerability in Hummingheads Defense Platform. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 5th 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 AC-3 (Access Enforcement) and AC-4 (Information Flow Enforcement) — see the control section below for these in your framework.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-2149
Vulnerability Data
Unprotected Windows messaging channel ('Shatter') issue exists in Defense Platform Home Edition Ver.3.9.51.x and earlier. If an attacker sends a specially crafted message to the specific process of the Windows system where the product is running, arbitrary code may be…
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executed with SYSTEM privilege.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Enforces authorization checks on all logical access paths, which directly requires verifying message sources before allowing privileged actions.
Enforces information flow rules between processes, blocking unauthorized messages from lower-privilege sources to elevated ones.
Requires isolation of security functions so that untrusted message channels cannot reach privileged code paths.
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.
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.
Security testing can discover shatter vulnerabilities but does not itself implement the control's broader acceptance criteria.
Restricting use of privileged utility programs limits the number of elevated processes that could be exploited through unprotected Windows messages.
Privileged access rights reduce the attack surface by limiting processes that run elevated and can be targeted via shatter attacks.
Secure development life cycle mandates input validation and privilege separation that directly prevent shatter-style message injection.
Application security requirements can specify authenticated IPC and message-source verification to block unauthorized Windows messages.
Secure system architecture principles require least-privilege design and authenticated inter-process communication, mitigating shatter attacks.