CVE-2026-4543
A vulnerability was found in Wavlink WL-WN578W2 221110.
Does this matter?
Lower severity and a low EPSS score (5.63%). Track it; it rarely justifies an emergency change on its own.
Description
A vulnerability was found in Wavlink WL-WN578W2 221110. The impacted element is an unknown function of the file /cgi-bin/firewall.cgi of the component POST Request Handler. Performing a manipulation of the argument dmz_flag/del_flag results in command injection. It is possible to initiate the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
- CVSS 4.0
- 2.1 LOWCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 5.63% probability · 93th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-74, CWE-77
- Affected
- wavlink/wl-wn578w2 firmware
- Source
- cna@vuldb.com
EPSS 5.6% since 26 October 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
- https://github.com/Litengzheng/vul_db/blob/main/WL-WN578W2/vul_4/README.mdExploit, Third Party Advisory
- https://github.com/Litengzheng/vul_db/blob/main/WL-WN578W2/vul_5/README.mdExploit, Third Party Advisory
- https://vuldb.com/?ctiid.352360Permissions Required, VDB Entry
- https://vuldb.com/?id.352360Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.774690Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.774691Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.