# CVE-2026-2530: Wavlink WL-WN579A3 wireless.cgi AddMac command injection

> Remote attackers can execute arbitrary commands on Wavlink WL-WN579A3 routers via the AddMac function in wireless.cgi.

- **Severity:** Medium 5.3 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Feb 2026
- **Updated:** 23 Feb 2026
- **Also known as:** GHSA-86c5-9jxx-m8g7

## What is CVE-2026-2530?

CVE-2026-2530 is a medium-severity command injection vulnerability in Wavlink WL-WN579A3, published on 16 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official 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.

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

## Which versions are affected by CVE-2026-2530?

It affects 1 product.


Products: Wavlink Wl-Wn579a3 Firmware.

## How do I fix CVE-2026-2530?

No fix has been published for CVE-2026-2530 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-2530 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2530 exists.

## Other vulnerabilities in Wavlink WL-WN579A3

- [CVE-2025-44880](https://insights.sbomify.com/CVE-2025-44880/): Command injection in n/a (critical 9.8)
- [CVE-2025-44881](https://insights.sbomify.com/CVE-2025-44881/): Command injection in n/a (critical 9.8)
- [CVE-2025-44882](https://insights.sbomify.com/CVE-2025-44882/): Command injection in n/a (critical 9.8)
- [CVE-2026-2526](https://insights.sbomify.com/CVE-2026-2526/): Wavlink WL-WN579A3 wireless.cgi multi_ssid command injection (medium 5.3)
- [CVE-2026-2527](https://insights.sbomify.com/CVE-2026-2527/): Wavlink WL-WN579A3 login.cgi command injection (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-2530 and fix it if it is affected.

What it is: CVE-2026-2530 is a medium-severity command injection vulnerability in Wavlink WL-WN579A3, published on 16 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2530 exists.

Affected product: Wavlink WL-WN579A3. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-2530/ (Markdown: https://insights.sbomify.com/CVE-2026-2530/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-2530
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-2530
- OSV: https://osv.dev/vulnerability/CVE-2026-2530

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-2530/
Summaries are generated and may contain mistakes; the official description above is the record.