M-System DL8 series (type A (DL8-A) versions prior to Ver3.0, type B (DL8-B) versions…
Priority LOW 32Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
M-System DL8 series (type A (DL8-A) versions prior to Ver3.0, type B (DL8-B) versions prior to Ver3.0, type C (DL8-C) versions prior to Ver3.0, type D (DL8-D) versions prior to Ver3.0, and type E (DL8-E) versions prior to Ver3.0) allows remote authenticated attackers to cause a denial of service (DoS) condition via unspecified vectors.
Why it matters now
EPSS 0.0138 72nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| M-System Co., Ltd. | M-System DL8 series | type A (DL8-A) versions prior to Ver3.0, type B (DL8-B) versions prior to Ver3.0, type C (DL8-C) versions prior to Ver3.0, type D (DL8-D) versions prior to Ver3.0, and type E (DL8-E) versions prior to Ver3.0 | — | No fix listed | CNA |
- M-System DL8 series VendorM-System Co., Ltd. Affected type A (DL8-A) versions prior to Ver3.0, type B (DL8-B) versions prior to Ver3.0, type C (DL8-C) versions prior to Ver3.0, type D (DL8-D) versions prior to Ver3.0, and type E (DL8-E) versions prior to Ver3.0 Fixed in — No fix listed CNA
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:m-system:dl8-a_firmware:*:*:*:*:*:*:*:* | before 3.0.81 | Vulnerable | M-System Co., Ltd. |
| cpe:2.3:h:m-system:dl8-a:-:*:*:*:*:*:*:* | not specified by NVD | Running on | M-System Co., Ltd. |
| cpe:2.3:o:m-system:dl8-b_firmware:*:*:*:*:*:*:*:* | before 3.0.77 | Vulnerable | M-System Co., Ltd. |
| cpe:2.3:h:m-system:dl8-b:-:*:*:*:*:*:*:* | not specified by NVD | Running on | M-System Co., Ltd. |
| cpe:2.3:o:m-system:dl8-c_firmware:*:*:*:*:*:*:*:* | before 3.0.99 | Vulnerable | M-System Co., Ltd. |
| cpe:2.3:h:m-system:dl8-c:-:*:*:*:*:*:*:* | not specified by NVD | Running on | M-System Co., Ltd. |
| cpe:2.3:o:m-system:dl8-d_firmware:*:*:*:*:*:*:*:* | before 3.0.91 | Vulnerable | M-System Co., Ltd. |
| cpe:2.3:h:m-system:dl8-d:-:*:*:*:*:*:*:* | not specified by NVD | Running on | M-System Co., Ltd. |
| cpe:2.3:o:m-system:dl8-e_firmware:*:*:*:*:*:*:*:* | before 3.0.12 | Vulnerable | M-System Co., Ltd. |
| cpe:2.3:h:m-system:dl8-e:-:*:*:*:*:*:*:* | not specified by NVD | Running on | M-System Co., Ltd. |
- cpe:2.3:o:m-system:dl8-a_firmware:*:*:*:*:*:*:*:* Versions before 3.0.81 Vulnerable ·M-System Co., Ltd.
- cpe:2.3:h:m-system:dl8-a:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·M-System Co., Ltd.
- cpe:2.3:o:m-system:dl8-b_firmware:*:*:*:*:*:*:*:* Versions before 3.0.77 Vulnerable ·M-System Co., Ltd.
- cpe:2.3:h:m-system:dl8-b:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·M-System Co., Ltd.
- cpe:2.3:o:m-system:dl8-c_firmware:*:*:*:*:*:*:*:* Versions before 3.0.99 Vulnerable ·M-System Co., Ltd.
- cpe:2.3:h:m-system:dl8-c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·M-System Co., Ltd.
- cpe:2.3:o:m-system:dl8-d_firmware:*:*:*:*:*:*:*:* Versions before 3.0.91 Vulnerable ·M-System Co., Ltd.
- cpe:2.3:h:m-system:dl8-d:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·M-System Co., Ltd.
- cpe:2.3:o:m-system:dl8-e_firmware:*:*:*:*:*:*:*:* Versions before 3.0.12 Vulnerable ·M-System Co., Ltd.
- cpe:2.3:h:m-system:dl8-e:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·M-System Co., Ltd.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-20675
- 2026-10-03 Alias added: GHSA-c5hr-whfp-6f78
References
More M-System Co., Ltd. Dl8-a Firmware vulnerabilities
- TI-2021-03902 Incorrect authorization in M-System DL8 series CVSS 3.1MEDIUM 4.3
Sources
- CVE-2021-20675 · CVE Program
- CVE-2021-20675 · NVD
- FIRST EPSS
- GHSA-c5hr-whfp-6f78 · 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