CVE-2024-51138

CRITICAL
2025-02-27 [email protected]
9.8
CVSS 3.1
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CVSS Vector

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

Lifecycle Timeline

2
Analysis Generated
Mar 28, 2026 - 18:28 vuln.today
CVE Published
Feb 27, 2025 - 21:15 nvd
CRITICAL 9.8

Tags

Buffer Overflow RCE Stack Overflow Vigor3912 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 Vigor2763 Firmware Vigor2865 Firmware Vigor2866 Firmware Vigor2927 Firmware Vigor2962 Firmware Vigor3910 Firmware Vigor2915 Firmware Vigor1000B Firmware Vigor2952 Firmware Vigor3220 Firmware

Description

Vigor165/166 4.2.7 and earlier; Vigor2620/LTE200 3.9.8.9 and earlier; Vigor2860/2925 3.9.8 and earlier; Vigor2862/2926 3.9.9.5 and earlier; Vigor2133/2762/2832 3.9.9 and earlier; Vigor2135/2765/2766 4.4.5. and earlier; Vigor2865/2866/2927 4.4.5.3 and earlier; Vigor2962 4.3.2.8 and earlier; Vigor3912 4.3.6.1 and earlier; Vigor3910 4.4.3.1 and earlier a stack-based buffer overflow vulnerability has been identified in the URL parsing functionality of the TR069 STUN server. This flaw occurs due to insufficient bounds checking on the amount of URL parameters, allowing an attacker to exploit the overflow by sending a maliciously crafted request. Consequently, a remote attacker can execute arbitrary code with elevated privileges.

Analysis

Vigor165/166 4.2.7 and earlier; Vigor2620/LTE200 3.9.8.9 and earlier; Vigor2860/2925 3.9.8 and earlier; Vigor2862/2926 3.9.9.5 and earlier; Vigor2133/2762/2832 3.9.9 and earlier; Vigor2135/2765/2766. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical Context

This vulnerability is classified under CWE-121. Vigor165/166 4.2.7 and earlier; Vigor2620/LTE200 3.9.8.9 and earlier; Vigor2860/2925 3.9.8 and earlier; Vigor2862/2926 3.9.9.5 and earlier; Vigor2133/2762/2832 3.9.9 and earlier; Vigor2135/2765/2766 4.4.5. and earlier; Vigor2865/2866/2927 4.4.5.3 and earlier; Vigor2962 4.3.2.8 and earlier; Vigor3912 4.3.6.1 and earlier; Vigor3910 4.4.3.1 and earlier a stack-based buffer overflow vulnerability has been identified in the URL parsing functionality of the TR069 STUN server. This flaw occurs due to insufficient bounds checking on the amount of URL parameters, allowing an attacker to exploit the overflow by sending a maliciously crafted request. Consequently, a remote attacker can execute arbitrary code with elevated privileges. Affected products include: Draytek Vigor3912 Firmware, Draytek Vigor2620 Firmware, Draytek Vigorlte200 Firmware, Draytek Vigor2860 Firmware, Draytek Vigor2925 Firmware.

Affected Products

Draytek Vigor3912 Firmware, Draytek Vigor2620 Firmware, Draytek Vigorlte200 Firmware, Draytek Vigor2860 Firmware, Draytek Vigor2925 Firmware.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Priority Score

50
Low Medium High Critical
KEV: 0
EPSS: +0.9
CVSS: +49
POC: 0

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CVE-2024-51138 vulnerability details – vuln.today
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