CVE-2024-41338

HIGH
2025-02-27 [email protected]
7.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 28, 2026 - 18:28 vuln.today
CVE Published
Feb 27, 2025 - 21:15 nvd
HIGH 7.5

Tags

Null Pointer Dereference Denial Of Service Vigor165 Firmware Vigor166 Firmware Vigor2620 Firmware Vigorlte200 Firmware Vigor2860 Firmware Vigor2925 Firmware Vigor2862 Firmware Vigor2926 Firmware Vigor2133 Firmware Vigor2762 Firmware Vigor2832 Firmware Vigor2135 Firmware Vigor2765 Firmware Vigor2766 Firmware Vigor2865 Firmware Vigor2866 Firmware Vigor2927 Firmware Vigor2962 Firmware Vigor3910 Firmware Vigor3912 Firmware

Description

A NULL pointer dereference in Draytek devices Vigor 165/166 prior to v4.2.6 , Vigor 2620/LTE200 prior to v3.9.8.8, Vigor 2860/2925 prior to v3.9.7, Vigor 2862/2926 prior to v3.9.9.4, Vigor 2133/2762/2832 prior to v3.9.8, Vigor 2135/2765/2766 prior to v4.4.5.1, Vigor 2865/2866/2927 prior to v4.4.5.3, Vigor 2962/3910 prior to v4.3.2.7, Vigor 3912 prior to v4.3.5.2, and Vigor 2925 up to v3.9.6 allows attackers to cause a Denial of Service (DoS) via a crafted DHCP request.

Analysis

A NULL pointer dereference in Draytek devices Vigor 165/166 prior to v4.2.6 , Vigor 2620/LTE200 prior to v3.9.8.8, Vigor 2860/2925 prior to v3.9.7, Vigor 2862/2926 prior to v3.9.9.4, Vigor. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical Context

This vulnerability is classified as NULL Pointer Dereference (CWE-476), which allows attackers to crash the application by dereferencing a null pointer. A NULL pointer dereference in Draytek devices Vigor 165/166 prior to v4.2.6 , Vigor 2620/LTE200 prior to v3.9.8.8, Vigor 2860/2925 prior to v3.9.7, Vigor 2862/2926 prior to v3.9.9.4, Vigor 2133/2762/2832 prior to v3.9.8, Vigor 2135/2765/2766 prior to v4.4.5.1, Vigor 2865/2866/2927 prior to v4.4.5.3, Vigor 2962/3910 prior to v4.3.2.7, Vigor 3912 prior to v4.3.5.2, and Vigor 2925 up to v3.9.6 allows attackers to cause a Denial of Service (DoS) via a crafted DHCP request. Affected products include: Draytek Vigor165 Firmware, Draytek Vigor166 Firmware, Draytek Vigor2620 Firmware, Draytek Vigorlte200 Firmware, Draytek Vigor2860 Firmware.

Affected Products

Draytek Vigor165 Firmware, Draytek Vigor166 Firmware, Draytek Vigor2620 Firmware, Draytek Vigorlte200 Firmware, Draytek Vigor2860 Firmware.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Check pointers before dereferencing. Use static analysis tools to detect null pointer paths.

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +38
POC: 0

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CVE-2024-41338 vulnerability details – vuln.today
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