TI-2026-02156 Aliases CVE-2026-2530 GHSA-86c5-9jxx-m8g7

Wavlink WL-WN579A3 wireless.cgi AddMac command injection

MEDIUM 57CWE-74Published 2026-02-16 · Updated 2026-02-23

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: Low · Low · Low
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-77.

Summary

A weakness has been identified in Wavlink WL-WN579A3 up to 20210219. This affects the function AddMac of the file /cgi-bin/wireless.cgi. This manipulation of the argument macAddr causes command injection. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.0916 95th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA and NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Wavlink	WL-WN579A3	20210219	—	No fix listed	CNA

WL-WN579A3 VendorWavlink Affected 20210219 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:wavlink:wl-wn579a3_firmware::::::::	up to 2021-02-19	Vulnerable	Wavlink
cpe:2.3:h:wavlink:wl-wn579a3:-:::::::*	not specified by NVD	Running on	Wavlink

cpe:2.3:o:wavlink:wl-wn579a3_firmware:*:*:*:*:*:*:*:* Versions up to 2021-02-19 Vulnerable ·Wavlink
cpe:2.3:h:wavlink:wl-wn579a3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Wavlink

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-2530
2026-10-03 Alias added: GHSA-86c5-9jxx-m8g7
2026-10-14 EPSS moved to the 95th–99th percentile

References

Exploit 1

https://github.com/MRAdera/IoT-Vuls/blob/main/wavlink/wn579a3/AddMac.md

TI-2026-02155 Wavlink WL-WN579A3 wireless.cgi DeleteMac command injection CVSS 4.0MEDIUM 5.3
TI-2026-02154 Wavlink WL-WN579A3 wireless.cgi Delete_Mac_list command injection CVSS 4.0MEDIUM 5.3
TI-2026-02153 Wavlink WL-WN579A3 login.cgi command injection CVSS 4.0MEDIUM 5.3
TI-2026-02152 Wavlink WL-WN579A3 wireless.cgi multi_ssid command injection CVSS 4.0MEDIUM 5.3
TI-2025-28679 A command injection vulnerability in the component /cgi-bin/firewall.cgi of Wavlink… CVSS 3.1CRITICAL 9.8
TI-2025-28678 A command injection vulnerability in the component /cgi-bin/qos.cgi of Wavlink WL-WN579A3… CVSS 3.1CRITICAL 9.8

See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences