DrayTek Vigor310 devices through 4.3.2.6 allow a remote attacker to execute arbitrary…
Priority MEDIUM 51CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
DrayTek Vigor310 devices through 4.3.2.6 allow a remote attacker to execute arbitrary code via the function ft_payload_dns(), because a byte sign-extension operation occurs for the length argument of a _memcpy call, leading to a heap-based Buffer Overflow.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00892 59th 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
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 48
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:draytek:vigor3912_firmware:*:*:*:*:*:*:*:* | before 4.3.6.1 | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor3912:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigor2962_firmware:*:*:*:*:*:*:*:* | before 4.3.2.8; 4.4.0.0 to before 4.4.3.1 | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor2962:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigor3910_firmware:*:*:*:*:*:*:*:* | before 4.3.2.8; 4.4.0.0 to before 4.4.3.1 | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor3910:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigor165_firmware:*:*:*:*:*:*:*:* | before 4.2.7 | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor165:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigor1000b_firmware:*:*:*:*:*:*:*:* | before 4.3.2.8; 4.4.0.0 to before 4.4.3.1 | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor1000b:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
- cpe:2.3:o:draytek:vigor3912_firmware:*:*:*:*:*:*:*:* Versions before 4.3.6.1 Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor3912:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
- cpe:2.3:o:draytek:vigor2962_firmware:*:*:*:*:*:*:*:* Versions before 4.3.2.8; 4.4.0.0 to before 4.4.3.1 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 4.3.2.8; 4.4.0.0 to before 4.4.3.1 Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor3910:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
- cpe:2.3:o:draytek:vigor165_firmware:*:*:*:*:*:*:*:* Versions before 4.2.7 Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor165:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
- cpe:2.3:o:draytek:vigor1000b_firmware:*:*:*:*:*:*:*:* Versions before 4.3.2.8; 4.4.0.0 to before 4.4.3.1 Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor1000b:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
Show 38 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:draytek:vigor166_firmware:*:*:*:*:*:*:*:* | before 4.2.7 | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor166:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigor2135_firmware:*:*:*:*:*:*:*:* | before 4.4.5.3 | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor2135:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigor2763_firmware:*:*:*:*:*:*:*:* | before 4.4.5.3 | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor2763:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigor2765_firmware:*:*:*:*:*:*:*:* | before 4.4.5.3 | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor2765:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigor2865_firmware:*:*:*:*:*:*:*:* | before 4.4.5.2 | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor2865:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigor2766_firmware:*:*:*:*:*:*:*:* | before 4.4.5.3 | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor2766:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigor2866_firmware:*:*:*:*:*:*:*:* | before 4.4.5.2 | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor2866:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigor2915_firmware:*:*:*:*:*:*:*:* | before 4.4.5.3 | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor2915:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigor2620_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor2620:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigorlte200_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigorlte200:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigor2133_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor2133:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigor2762_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor2762:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigor2832_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor2832:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigor2860_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor2860:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigor2862_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor2862:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigor2925_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor2925:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigor2926_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor2926:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigor2952_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor2952:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
| cpe:2.3:o:draytek:vigor3220_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | DrayTek |
| cpe:2.3:h:draytek:vigor3220:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DrayTek |
- cpe:2.3:o:draytek:vigor166_firmware:*:*:*:*:*:*:*:* Versions before 4.2.7 Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor166:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
- cpe:2.3:o:draytek:vigor2135_firmware:*:*:*:*:*:*:*:* Versions before 4.4.5.3 Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor2135:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
- cpe:2.3:o:draytek:vigor2763_firmware:*:*:*:*:*:*:*:* Versions before 4.4.5.3 Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor2763:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
- cpe:2.3:o:draytek:vigor2765_firmware:*:*:*:*:*:*:*:* Versions before 4.4.5.3 Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor2765:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
- cpe:2.3:o:draytek:vigor2865_firmware:*:*:*:*:*:*:*:* Versions before 4.4.5.2 Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor2865:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
- cpe:2.3:o:draytek:vigor2766_firmware:*:*:*:*:*:*:*:* Versions before 4.4.5.3 Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor2766:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
- cpe:2.3:o:draytek:vigor2866_firmware:*:*:*:*:*:*:*:* Versions before 4.4.5.2 Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor2866:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
- cpe:2.3:o:draytek:vigor2915_firmware:*:*:*:*:*:*:*:* Versions before 4.4.5.3 Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor2915:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
- cpe:2.3:o:draytek:vigor2620_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor2620:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
- cpe:2.3:o:draytek:vigorlte200_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigorlte200:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
- cpe:2.3:o:draytek:vigor2133_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor2133:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
- cpe:2.3:o:draytek:vigor2762_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor2762:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
- cpe:2.3:o:draytek:vigor2832_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor2832:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
- cpe:2.3:o:draytek:vigor2860_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor2860:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
- cpe:2.3:o:draytek:vigor2862_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor2862:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
- cpe:2.3:o:draytek:vigor2925_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor2925:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
- cpe:2.3:o:draytek:vigor2926_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor2926:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
- cpe:2.3:o:draytek:vigor2952_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor2952:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
- cpe:2.3:o:draytek:vigor3220_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·DrayTek
- cpe:2.3:h:draytek:vigor3220:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DrayTek
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-41593
- 2026-10-03 Alias added: GHSA-82ch-xgf6-4685
References
More DrayTek Vigor1000b Firmware vulnerabilities
- 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-2024-34257 Buffer Overflow vulnerability in Vigor2620/LTE200 3.9.8.9 and earlier and Vigor2860/2925… CVSS 3.1CRITICAL 9.8
- TI-2024-34256 Vigor165/166 4.2.7 and earlier; Vigor2620/LTE200 3.9.8.9 and earlier; Vigor2860/2925… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2024-41593 · CVE Program
- CVE-2024-41593 · NVD
- FIRST EPSS
- GHSA-82ch-xgf6-4685 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences