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CVE-2026-2530· NVD / CVE Program· CNA VulDB

Wavlink WL-WN579A3 wireless.cgi AddMac command injection

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.

LowCVSS 2.1 · v4.0—No exploit No fix recorded
Published
Feb 16, 2026
Updated
Jun 17, 2026
EPSS
8.2% · 95th percentile
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Action score

10

Monitor

Low priority for now.

CVSS
8 / 40 · 2.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
2 / 30 · 8.2%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · VulDB
5.3
NVD has not scored this yet; the score shown is the CNA’s.

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Affected systems

VendorProduct
wavlinkwl-wn579a3 firmware
wavlinkwl-wn579a3

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • wavlink wl-wn579a3 firmwareup to 2021-02-19 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (VulDB). Independent of NVD's CPE analysis and usually ahead of it.

  • Wavlink WL-WN579A3

    • 20210219affected

Same product

wavlink: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-44882A command injection vulnerability in the component /cgi-bin/firewall.cgi of Wavlink WL-WN579A3 v1.0 allows attackers to execute arbitrary co
    40Plan
  • CVE-2025-44880A command injection vulnerability in the component /cgi-bin/adm.cgi of Wavlink WL-WN579A3 v1.0 allows attackers to execute arbitrary command
    40Plan
  • CVE-2025-44881A command injection vulnerability in the component /cgi-bin/qos.cgi of Wavlink WL-WN579A3 v1.0 allows attackers to execute arbitrary command
    40Plan
  • CVE-2026-2529Wavlink WL-WN579A3 wireless.cgi DeleteMac command injection
    24Monitor
  • CVE-2026-2527Wavlink WL-WN579A3 login.cgi command injection
    11Monitor
  • CVE-2026-2528Wavlink WL-WN579A3 wireless.cgi Delete_Mac_list command injection
    10Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-25291 days apartWavlink WL-WN579A3 wireless.cgi DeleteMac command injection
    24Monitor
  • CVE-2026-25271 days apartWavlink WL-WN579A3 login.cgi command injection
    11Monitor
  • CVE-2026-25261 days apartWavlink WL-WN579A3 wireless.cgi multi_ssid command injection
    10Monitor
  • CVE-2026-25281 days apartWavlink WL-WN579A3 wireless.cgi Delete_Mac_list command injection
    10Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
X

Weakness class (CWE)

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

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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records