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TI-2024-27588 Aliases CVE-2024-41338GHSA-22qr-hr3v-pmr2

A NULL pointer dereference in Draytek devices Vigor 165/166 prior to v4.2.6 , Vigor…

Priority LOW 39CWE-476Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-476.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00453 39th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 40

CPEVersionsRoleVendor
cpe:2.3:o:draytek:vigor165_firmware:*:*:*:*:*:*:*:*before 4.2.6VulnerableDrayTek
cpe:2.3:h:draytek:vigor165:-:*:*:*:*:*:*:*not specified by NVDRunning onDrayTek
cpe:2.3:o:draytek:vigor166_firmware:*:*:*:*:*:*:*:*before 4.2.6VulnerableDrayTek
cpe:2.3:h:draytek:vigor166:-:*:*:*:*:*:*:*not specified by NVDRunning onDrayTek
cpe:2.3:o:draytek:vigor2620_firmware:*:*:*:*:*:*:*:*before 3.9.8.8VulnerableDrayTek
cpe:2.3:h:draytek:vigor2620:-:*:*:*:*:*:*:*not specified by NVDRunning onDrayTek
cpe:2.3:o:draytek:vigorlte200_firmware:*:*:*:*:*:*:*:*before 3.9.8.8VulnerableDrayTek
cpe:2.3:h:draytek:vigorlte200:-:*:*:*:*:*:*:*not specified by NVDRunning onDrayTek
cpe:2.3:o:draytek:vigor2860_firmware:*:*:*:*:*:*:*:*before 3.9.7VulnerableDrayTek
cpe:2.3:h:draytek:vigor2860:-:*:*:*:*:*:*:*not specified by NVDRunning onDrayTek
  • cpe:2.3:o:draytek:vigor165_firmware:*:*:*:*:*:*:*:* Versions before 4.2.6 Vulnerable ·DrayTek
  • cpe:2.3:h:draytek:vigor165:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
  • cpe:2.3:o:draytek:vigor166_firmware:*:*:*:*:*:*:*:* Versions before 4.2.6 Vulnerable ·DrayTek
  • cpe:2.3:h:draytek:vigor166:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
  • cpe:2.3:o:draytek:vigor2620_firmware:*:*:*:*:*:*:*:* Versions before 3.9.8.8 Vulnerable ·DrayTek
  • cpe:2.3:h:draytek:vigor2620:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
  • cpe:2.3:o:draytek:vigorlte200_firmware:*:*:*:*:*:*:*:* Versions before 3.9.8.8 Vulnerable ·DrayTek
  • cpe:2.3:h:draytek:vigorlte200:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
  • cpe:2.3:o:draytek:vigor2860_firmware:*:*:*:*:*:*:*:* Versions before 3.9.7 Vulnerable ·DrayTek
  • cpe:2.3:h:draytek:vigor2860:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
Show 30 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:draytek:vigor2925_firmware:*:*:*:*:*:*:*:*before 3.9.7VulnerableDrayTek
cpe:2.3:h:draytek:vigor2925:-:*:*:*:*:*:*:*not specified by NVDRunning onDrayTek
cpe:2.3:o:draytek:vigor2862_firmware:*:*:*:*:*:*:*:*before 3.9.9.4VulnerableDrayTek
cpe:2.3:h:draytek:vigor2862:-:*:*:*:*:*:*:*not specified by NVDRunning onDrayTek
cpe:2.3:o:draytek:vigor2926_firmware:*:*:*:*:*:*:*:*before 3.9.9.4VulnerableDrayTek
cpe:2.3:h:draytek:vigor2926:-:*:*:*:*:*:*:*not specified by NVDRunning onDrayTek
cpe:2.3:o:draytek:vigor2133_firmware:*:*:*:*:*:*:*:*before 3.9.8VulnerableDrayTek
cpe:2.3:h:draytek:vigor2133:-:*:*:*:*:*:*:*not specified by NVDRunning onDrayTek
cpe:2.3:o:draytek:vigor2762_firmware:*:*:*:*:*:*:*:*before 3.9.8VulnerableDrayTek
cpe:2.3:h:draytek:vigor2762:-:*:*:*:*:*:*:*not specified by NVDRunning onDrayTek
cpe:2.3:o:draytek:vigor2832_firmware:*:*:*:*:*:*:*:*before 3.9.8VulnerableDrayTek
cpe:2.3:h:draytek:vigor2832:-:*:*:*:*:*:*:*not specified by NVDRunning onDrayTek
cpe:2.3:o:draytek:vigor2135_firmware:*:*:*:*:*:*:*:*before 4.4.5.1VulnerableDrayTek
cpe:2.3:h:draytek:vigor2135:-:*:*:*:*:*:*:*not specified by NVDRunning onDrayTek
cpe:2.3:o:draytek:vigor2765_firmware:*:*:*:*:*:*:*:*before 4.4.5.1VulnerableDrayTek
cpe:2.3:h:draytek:vigor2765:-:*:*:*:*:*:*:*not specified by NVDRunning onDrayTek
cpe:2.3:o:draytek:vigor2766_firmware:*:*:*:*:*:*:*:*before 4.4.5.1VulnerableDrayTek
cpe:2.3:h:draytek:vigor2766:-:*:*:*:*:*:*:*not specified by NVDRunning onDrayTek
cpe:2.3:o:draytek:vigor2865_firmware:*:*:*:*:*:*:*:*before 4.4.5.3VulnerableDrayTek
cpe:2.3:h:draytek:vigor2865:-:*:*:*:*:*:*:*not specified by NVDRunning onDrayTek
cpe:2.3:o:draytek:vigor2866_firmware:*:*:*:*:*:*:*:*before 4.4.5.3VulnerableDrayTek
cpe:2.3:h:draytek:vigor2866:-:*:*:*:*:*:*:*not specified by NVDRunning onDrayTek
cpe:2.3:o:draytek:vigor2927_firmware:*:*:*:*:*:*:*:*before 4.4.5.3VulnerableDrayTek
cpe:2.3:h:draytek:vigor2927:-:*:*:*:*:*:*:*not specified by NVDRunning onDrayTek
cpe:2.3:o:draytek:vigor2962_firmware:*:*:*:*:*:*:*:*before 4.3.2.7VulnerableDrayTek
cpe:2.3:h:draytek:vigor2962:-:*:*:*:*:*:*:*not specified by NVDRunning onDrayTek
cpe:2.3:o:draytek:vigor3910_firmware:*:*:*:*:*:*:*:*before 4.3.2.7VulnerableDrayTek
cpe:2.3:h:draytek:vigor3910:-:*:*:*:*:*:*:*not specified by NVDRunning onDrayTek
cpe:2.3:o:draytek:vigor3912_firmware:*:*:*:*:*:*:*:*before 4.3.5.2VulnerableDrayTek
cpe:2.3:h:draytek:vigor3912:-:*:*:*:*:*:*:*not specified by NVDRunning onDrayTek
  • cpe:2.3:o:draytek:vigor2925_firmware:*:*:*:*:*:*:*:* Versions before 3.9.7 Vulnerable ·DrayTek
  • cpe:2.3:h:draytek:vigor2925:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
  • cpe:2.3:o:draytek:vigor2862_firmware:*:*:*:*:*:*:*:* Versions before 3.9.9.4 Vulnerable ·DrayTek
  • cpe:2.3:h:draytek:vigor2862:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
  • cpe:2.3:o:draytek:vigor2926_firmware:*:*:*:*:*:*:*:* Versions before 3.9.9.4 Vulnerable ·DrayTek
  • cpe:2.3:h:draytek:vigor2926:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
  • cpe:2.3:o:draytek:vigor2133_firmware:*:*:*:*:*:*:*:* Versions before 3.9.8 Vulnerable ·DrayTek
  • cpe:2.3:h:draytek:vigor2133:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
  • cpe:2.3:o:draytek:vigor2762_firmware:*:*:*:*:*:*:*:* Versions before 3.9.8 Vulnerable ·DrayTek
  • cpe:2.3:h:draytek:vigor2762:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
  • cpe:2.3:o:draytek:vigor2832_firmware:*:*:*:*:*:*:*:* Versions before 3.9.8 Vulnerable ·DrayTek
  • cpe:2.3:h:draytek:vigor2832:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
  • cpe:2.3:o:draytek:vigor2135_firmware:*:*:*:*:*:*:*:* Versions before 4.4.5.1 Vulnerable ·DrayTek
  • cpe:2.3:h:draytek:vigor2135:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
  • cpe:2.3:o:draytek:vigor2765_firmware:*:*:*:*:*:*:*:* Versions before 4.4.5.1 Vulnerable ·DrayTek
  • cpe:2.3:h:draytek:vigor2765:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
  • cpe:2.3:o:draytek:vigor2766_firmware:*:*:*:*:*:*:*:* Versions before 4.4.5.1 Vulnerable ·DrayTek
  • cpe:2.3:h:draytek:vigor2766:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
  • cpe:2.3:o:draytek:vigor2865_firmware:*:*:*:*:*:*:*:* Versions before 4.4.5.3 Vulnerable ·DrayTek
  • cpe:2.3:h:draytek:vigor2865:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
  • cpe:2.3:o:draytek:vigor2866_firmware:*:*:*:*:*:*:*:* Versions before 4.4.5.3 Vulnerable ·DrayTek
  • cpe:2.3:h:draytek:vigor2866:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
  • cpe:2.3:o:draytek:vigor2927_firmware:*:*:*:*:*:*:*:* Versions before 4.4.5.3 Vulnerable ·DrayTek
  • cpe:2.3:h:draytek:vigor2927:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
  • cpe:2.3:o:draytek:vigor2962_firmware:*:*:*:*:*:*:*:* Versions before 4.3.2.7 Vulnerable ·DrayTek
  • cpe:2.3:h:draytek:vigor2962:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
  • cpe:2.3:o:draytek:vigor3910_firmware:*:*:*:*:*:*:*:* Versions before 4.3.2.7 Vulnerable ·DrayTek
  • cpe:2.3:h:draytek:vigor3910:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
  • cpe:2.3:o:draytek:vigor3912_firmware:*:*:*:*:*:*:*:* Versions before 4.3.5.2 Vulnerable ·DrayTek
  • cpe:2.3:h:draytek:vigor3912:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-41338
  2. 2026-10-03 Alias added: GHSA-22qr-hr3v-pmr2

References

Advisory 1

  • TI-2023-16684 Draytek Vigor Routers firmware versions below 3.9.6/4.2.4, Access Points firmware… CVSS 3.1CRITICAL 9.8
  • TI-2024-27685 Buffer Overflow vulnerabilities exist in DrayTek Vigor310 devices through 4.3.2.6 (in the… CVSS 3.1HIGH 8.0
  • TI-2024-27681 DrayTek Vigor3910 devices through 4.3.2.6 have a stack-based overflow when processing… CVSS 3.1HIGH 8.0
  • TI-2022-14179 An issue was discovered on certain DrayTek Vigor routers before July 2022 such as the… CVSS 3.1CRITICAL 10.0
  • TI-2024-27682 DrayTek Vigor310 devices through 4.3.2.6 allow a remote attacker to execute arbitrary… CVSS 3.1CRITICAL 9.8
  • TI-2024-27589 An issue in the CGI endpoint used to upload configurations in Draytek devices Vigor… CVSS 3.1HIGH 8.8
See all 14 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences