Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSummary
CVE-2025-67841 is a high-severity Inefficient Algorithmic Complexity (CWE-407) vulnerability in Nordicsemi (inferred from references). Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Endpoint Denial of Service (T1499); ranked at the 20th 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 SC-5 (Denial-of-service Protection) and SC-6 (Resource Availability) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2025-67841 is an algorithmic complexity vulnerability (CWE-407) in Nordic Semiconductor's IronSide SE for nRF54H20, affecting versions before 23.0.2+17. Published on 2026-04-15T16:16:33.997, it carries a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H), highlighting its potential for significant availability disruption without impacting confidentiality or integrity.
Remote attackers require no privileges or user interaction to exploit this issue over the network with low complexity. Exploitation triggers a denial-of-service condition, resulting in high availability impact such as device crashes, reboots, or resource exhaustion due to the algorithmic complexity flaw.
Nordic Semiconductor addresses the vulnerability in security advisory SA-2025-447-v1.1, available at https://docs.nordicsemi.com/bundle/SA/resource/SA-2025-447-v1.1.pdf, with mitigation via an update to IronSide SE version 23.0.2+17 or later. Further resources are on their site at https://nordicsemi.no.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-209487
Vulnerability Data
Nordic Semiconductor IronSide SE for nRF54H20 before 23.0.2+17 has an Algorithmic complexity issue.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V1.2.9
Mitigating Controls (NIST 800-53 r5) AI
Denial-of-service protection directly reduces the impact of resource exhaustion triggered by worst-case algorithmic inputs.
Resource availability allocation limits blast radius when an inefficient algorithm is forced into its worst case.
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 (code review, complexity analysis, safe algorithm selection) prevent introduction of exploitable worst-case behavior.
Runtime monitoring of software and resources can detect the performance impact of triggered worst-case complexity.
Identifying and recording algorithmic-complexity vulnerabilities directly addresses the root cause before exploitation.
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 uncover performance issues stemming from algorithmic complexity.
Redundancy of processing facilities can absorb resource exhaustion from inefficient algorithms.
Monitoring activities can identify anomalous resource consumption indicative of algorithmic complexity attacks.
Secure development life cycle includes design reviews that can catch inefficient algorithms before deployment.
Secure system architecture principles encourage selection of algorithms with acceptable worst-case complexity.
Secure coding practices can include guidelines to avoid or mitigate inefficient algorithms.