CVE-2021-26747
Netis WF2780 2.3.40404 and WF2411 1.1.29629 devices allow Shell Metacharacter Injection into the ping command, leading to remote code execution.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 54.8%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
Netis WF2780 2.3.40404 and WF2411 1.1.29629 devices allow Shell Metacharacter Injection into the ping command, leading to remote code execution.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 54.78% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Affected
- netis-systems/wf2780 firmware · netis-systems/wf2411 firmware
- Source
- cve@mitre.org
EPSS 54.8% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.netis-systems.com.tw/Product, Vendor Advisory
- https://github.com/yhstar00/netis-routeExploit, Third Party Advisory
- http://www.netis-systems.com.tw/Product, Vendor Advisory
- https://github.com/yhstar00/netis-routeExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.