Netis WF2780 2.3.40404 and WF2411 1.1.29629 devices allow Shell Metacharacter Injection…
Priority HIGH 75CWE-78Published · 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-78.
Summary
Netis WF2780 2.3.40404 and WF2411 1.1.29629 devices allow Shell Metacharacter Injection into the ping command, leading to remote code execution.
Why it matters now
EPSS 0.54777 99th 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 · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:netis-systems:wf2780_firmware:2.3.40404:*:*:*:*:*:*:* | 2.3.40404 | Vulnerable | Netis |
| cpe:2.3:h:netis-systems:wf2780:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Netis |
| cpe:2.3:o:netis-systems:wf2411_firmware:1.1.29629:*:*:*:*:*:*:* | 1.1.29629 | Vulnerable | Netis |
| cpe:2.3:h:netis-systems:wf2411:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Netis |
- cpe:2.3:o:netis-systems:wf2780_firmware:2.3.40404:*:*:*:*:*:*:* Versions 2.3.40404 Vulnerable ·Netis
- cpe:2.3:h:netis-systems:wf2780:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Netis
- cpe:2.3:o:netis-systems:wf2411_firmware:1.1.29629:*:*:*:*:*:*:* Versions 1.1.29629 Vulnerable ·Netis
- cpe:2.3:h:netis-systems:wf2411:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Netis
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-26747
- 2026-10-03 Alias added: GHSA-w38f-4qh6-g599
- 2026-10-08 EPSS moved to the 99th percentile and above
References
Advisory 1
More Netis Wf2411 Firmware vulnerabilities
- TI-2019-06476 On Netis WF2411 with firmware 2.1.36123 and other Netis WF2xxx devices (possibly WF2411… CVSS 3.0CRITICAL 9.8
Sources
- CVE-2021-26747 · CVE Program
- CVE-2021-26747 · NVD
- FIRST EPSS
- GHSA-w38f-4qh6-g599 · 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