Which versions of Wl Wn579a3 Firmware are affected by CVE-2026-2530?

Organizations using Wavlink WL-WN579A3 should be aware of moderate risk from CVE-2026-2530, a injection vulnerability rated CVSS 6.3.

Is there a public PoC exploit available for CVE-2026-2530?

Yes, a public proof-of-concept exploit is available for CVE-2026-2530. Prioritise patching immediately. EPSS: 0.4%.

How to fix or mitigate CVE-2026-2530?

Within 30 days: Identify affected systems running Wavlink WL-WN579A3 and apply vendor patches as part of regular patch cycle. Validate input sanitization for user-controlled parameters.

Wl Wn579a3 Firmware CVE-2026-2530

Q: What is the CVSS score of CVE-2026-2530?

CVE-2026-2530 has a CVSS 4.0 base score of 2.1 (Low). CVSS vector: CVSS: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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.4%.

LOW

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (CWE-74)

2026-02-16 cna@vuldb.com

Command Injection Wl Wn579a3 Firmware Wavlink

2.1

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

2.1 LOW

CVSS: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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

6.3 (MEDIUM) 2.1 (LOW)

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Feb 18, 2026 - 19:43 vuln.today

Public exploit code

CVE Published

Feb 16, 2026 - 04:15 nvd

MEDIUM 6.3

DescriptionCVE.org

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.

AnalysisAI

The WL-WN579A3 wireless router firmware contains a command injection vulnerability in the AddMac function of /cgi-bin/wireless.cgi that allows authenticated remote attackers to execute arbitrary commands with medium impact on confidentiality, integrity, and availability. Public exploit code is available for this vulnerability, and no patch has been released despite vendor notification. Affected systems running firmware versions up to 20210219 require immediate mitigation through network segmentation or device replacement.

Technical ContextAI

Affects Wl-Wn579A3 Firmware. 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.