Totolink devices A3100R v4.1.2cu.5050_B20200504, A830R v5.9c.4729_B20191112, and A720R…
Priority MEDIUM 47CWE-77Published · 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 · NVD. Fix status from CNA. Impact type from CWE-77.
Summary
Totolink devices A3100R v4.1.2cu.5050_B20200504, A830R v5.9c.4729_B20191112, and A720R v4.1.5cu.470_B20200911 were discovered to contain command injection vulnerability in the function setNoticeCfg. This vulnerability allows attackers to execute arbitrary commands via the IpFrom parameter.
Why it matters now
EPSS 0.02779 86th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:totolink:a720r_firmware:4.1.5cu.470_b20200911:*:*:*:*:*:*:* | 4.1.5cu.470_b20200911 | Vulnerable | TOTOLINK |
| cpe:2.3:h:totolink:a720r:-:*:*:*:*:*:*:* | not specified by NVD | Running on | TOTOLINK |
| cpe:2.3:o:totolink:a830r_firmware:5.9c.4729_b20191112:*:*:*:*:*:*:* | 5.9c.4729_b20191112 | Vulnerable | TOTOLINK |
| cpe:2.3:h:totolink:a830r:-:*:*:*:*:*:*:* | not specified by NVD | Running on | TOTOLINK |
| cpe:2.3:o:totolink:a3100r_firmware:4.1.2cu.5050_b20200504:*:*:*:*:*:*:* | 4.1.2cu.5050_b20200504 | Vulnerable | TOTOLINK |
| cpe:2.3:h:totolink:a3100r:-:*:*:*:*:*:*:* | not specified by NVD | Running on | TOTOLINK |
- cpe:2.3:o:totolink:a720r_firmware:4.1.5cu.470_b20200911:*:*:*:*:*:*:* Versions 4.1.5cu.470_b20200911 Vulnerable ·TOTOLINK
- cpe:2.3:h:totolink:a720r:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TOTOLINK
- cpe:2.3:o:totolink:a830r_firmware:5.9c.4729_b20191112:*:*:*:*:*:*:* Versions 5.9c.4729_b20191112 Vulnerable ·TOTOLINK
- cpe:2.3:h:totolink:a830r:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TOTOLINK
- cpe:2.3:o:totolink:a3100r_firmware:4.1.2cu.5050_b20200504:*:*:*:*:*:*:* Versions 4.1.2cu.5050_b20200504 Vulnerable ·TOTOLINK
- cpe:2.3:h:totolink:a3100r:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TOTOLINK
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-44247
- 2026-10-03 Alias added: GHSA-784g-p98m-4mfw
References
More TOTOLINK A3100r Firmware vulnerabilities
- TI-2025-20766 An issue in TOTOLINK A3100R V4.1.2cu.5247_B20211129 allows a remote attacker to execute… CVSS 3.1CRITICAL 9.8
- TI-2025-20692 TOTOLINK A950RG V4.1.2cu.5161_B20200903 was found to contain a pre-auth remote command… CVSS 3.1CRITICAL 9.8
- TI-2025-20691 TOTOLINK A830R V4.1.2cu.5182_B20201102 was found to contain a pre-auth remote command… CVSS 3.1CRITICAL 9.8
- TI-2025-20690 TOTOLINK A800R V4.1.2cu.5137_B20200730, A810R V4.1.2cu.5182_B20201026, A830R… CVSS 3.1CRITICAL 9.8
- TI-2024-28489 TOTOLINK A3100R V4.1.2cu.5050_B20200504 has a buffer overflow vulnerability in the… CVSS 3.1CRITICAL 9.8
- TI-2024-28488 TOTOLINK A3100R V4.1.2cu.5050_B20200504 has a buffer overflow vulnerability in the… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-44247 · CVE Program
- CVE-2021-44247 · NVD
- FIRST EPSS
- GHSA-784g-p98m-4mfw · 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