CVE-2026-2530 - Vulnerability Details

- Wavlink WL-WN579A3 wireless.cgi AddMac command injection

Description

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.

Published: 2026-02-16

Score: 5.3 Medium

EPSS: 4.9% Low

KEV: No

Impact:

Action:

Analysis

Impact

The vulnerability resides in the AddMac command of /cgi-bin/wireless.cgi on the Wavlink WL‑WN579A3 router. By manipulating the macAddr argument, an attacker can inject arbitrary shell commands, leading to remote execution of code on the device. Because the flaw is reachable from the network side, remote attackers with network access to the router’s web interface can exploit it without requiring local credentials.

Affected Systems

The affected product is the Wavlink WL‑WN579A3 wireless router. All firmware releases up to the 20210219 build are vulnerable. No other vendors or versions are impacted.

Risk and Exploitability

The CVSS score of 5.3 indicates a medium severity. The EPSS score is 5%, suggesting a low probability of exploitation in the wild, and it is not listed in the CISA KEV catalog. Nevertheless, the flaw enables remote code execution and the exploit code is publicly available. The vendor did not respond to disclosure, so no official patch exists at present.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Wavlink

WL-WN579A3

affected

Version	Status	Constraints
`20210219`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:wavlink:wl-wn579a3_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:wavlink:wl-wn579a3:-:*:*:*:*:*:*:*

No data.

Vendor Product Confidence Versions

Wavlink

Wl-wn579a3

—

Version	Status	Scheme	Platform
`20210219`	affected	generic	—

Found an issue or want to improve our Enrichment? You can suggest it directly by opening an issue on our dedicated GitHub repository .

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

Apply an official firmware update that addresses the AddMac command injection flaw (CWE‑74) once it is released by Wavlink.
If a patch is not available, block or restrict inbound traffic to /cgi-bin/wireless.cgi from untrusted networks and, if possible, disable remote management to mitigate improper access control (CWE‑77).
Implement input validation or sanitization for the macAddr parameter to prevent shell command injection (CWE‑74), or enforce strict firewall rules that reject malformed requests.
Continuously monitor device logs for attempts to invoke AddMac with malformed macAddr values and generate alerts on suspicious activity.

Generated by OpenCVE AI on June 18, 2026 at 13:39 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.0485.

Exploitation poc

Automatable no

Technical Impact partial

References

Link	Providers
https://github.com/MRAdera/IoT-Vuls/blob/main/wavlink/wn579a3/AddMac.md
https://vuldb.com/?ctiid.346118
https://vuldb.com/?id.346118
https://vuldb.com/?submit.748077

History

Wed, 18 Feb 2026 19:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Wavlink wl-wn579a3 Firmware
CPEs		cpe:2.3:h:wavlink:wl-wn579a3:-:::::::* cpe:2.3:o:wavlink:wl-wn579a3_firmware::::::::
Vendors & Products		Wavlink wl-wn579a3 Firmware

Tue, 17 Feb 2026 18:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Mon, 16 Feb 2026 12:15:00 +0000

Type	Values Removed	Values Added
First Time appeared		Wavlink Wavlink wl-wn579a3
Vendors & Products		Wavlink Wavlink wl-wn579a3

Mon, 16 Feb 2026 03:30:00 +0000

Type	Values Removed	Values Added
Description		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.
Title		Wavlink WL-WN579A3 wireless.cgi AddMac command injection
Weaknesses		CWE-74 CWE-77
References		https://github.com/MRAdera/IoT-Vuls/blob/main/wavlink/wn579a3/AddMac.md https://vuldb.com/?ctiid.346118 https://vuldb.com/?id.346118 https://vuldb.com/?submit.748077
Metrics		cvssV2_0 `{'score': 6.5, 'vector': 'AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}` cvssV3_0 `{'score': 6.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}` cvssV3_1 `{'score': 6.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}` cvssV4_0 `{'score': 5.3, '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'}`

Subscriptions

Wavlink Wl-wn579a3 Wl-wn579a3 Firmware

MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-02-16T02:32:06.862Z

Updated: 2026-02-23T10:04:27.221Z

Reserved: 2026-02-15T09:01:37.444Z

Link: CVE-2026-2530

Vulnrichment

Updated: 2026-02-17T17:13:09.781Z

NVD

Status : Analyzed

Published: 2026-02-16T04:15:51.677

Modified: 2026-06-17T10:31:15.187

Link: CVE-2026-2530

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-06-18T13:45:05Z

Weaknesses

CWE-74
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-77
Improper Neutralization of Special Elements used in a Command ('Command Injection')

Impact

Affected Systems

Risk and Exploitability

Tracking

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

Exploitation poc

Automatable no

Technical Impact partial

Subscriptions

JSON object

JSON object

JSON object

JSON object

JSON object