CVE-2024-41338

HIGH

7.5

CVSS Score

Published: February 27, 2025 at 12:00 AM UTC

Updated: July 5, 2026 at 01:31 AM UTC

40 products affected across 1 vendorVIGOR3910 FirmwareVIGOR2925 FirmwareVIGOR2962 Firmware

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Severity

HIGH7.5

Exploit prediction

EPSS 0.5%

SSVC

No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

VIGOR165 Firmware · Draytek

95%

v < 4.2.6

Affected range stops below 4.2.6, so it looks safe — our inference, not a vendor statement

draytek-vigor165 (same device)

VIGOR166 Firmware · Draytek

95%

v < 4.2.6

Affected range stops below 4.2.6, so it looks safe — our inference, not a vendor statement

draytek-vigor166 (same device)

VIGOR2133 Firmware · Draytek

95%

v < 3.9.8

Affected range stops below 3.9.8, so it looks safe — our inference, not a vendor statement

draytek-vigor2133 (same device)

VIGOR2135 Firmware · Draytek

95%

v < 4.4.5.1

Affected range stops below 4.4.5.1, so it looks safe — our inference, not a vendor statement

draytek-vigor-2135 (same device)

VIGOR2620 Firmware · Draytek

95%

v < 3.9.8.8

Affected range stops below 3.9.8.8, so it looks safe — our inference, not a vendor statement

VIGOR2762 Firmware · Draytek

95%

v < 3.9.8

Affected range stops below 3.9.8, so it looks safe — our inference, not a vendor statement

draytek-vigor2762 (same device)

VIGOR2765 Firmware · Draytek

95%

v < 4.4.5.1

Affected range stops below 4.4.5.1, so it looks safe — our inference, not a vendor statement

draytek-vigor-2765 (same device)

VIGOR2766 Firmware · Draytek

95%

v < 4.4.5.1

Affected range stops below 4.4.5.1, so it looks safe — our inference, not a vendor statement

draytek-vigor-2766 (same device)

VIGOR2832 Firmware · Draytek

95%

v < 3.9.8

Affected range stops below 3.9.8, so it looks safe — our inference, not a vendor statement

draytek-vigor2832 (same device)

VIGOR2860 Firmware · Draytek

95%

v < 3.9.7

Affected range stops below 3.9.7, so it looks safe — our inference, not a vendor statement

draytek-vigor2860 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: [email protected]

http://draytek.com

Third Party Advisory

Source: [email protected]

https://medium.com/faraday/advisory-multiple-vulnerabilities-affecting-draytek-routers-78a6cb8b3946

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-476

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