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Wl Wn579a3 Firmware CVE-2026-2529

MEDIUM
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (CWE-74)
2026-02-16 cna@vuldb.com
6.3
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Input neutralization, injection prevention
Impact

CVSS 6.3 (MEDIUM). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: None. Exploitable via remote/network. Public exploit/POC available.

Exploit ScenarioDerived

A remote attacker could exploit this flaw, command injection.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.4% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Unauthenticated command injection in the wireless configuration interface of Wavlink WL-WN579A3 firmware allows remote attackers to execute arbitrary commands through the delete_list parameter. Public exploit code is available for this vulnerability, and no patch has been released by the vendor despite early notification. Affected devices can be compromised remotely to gain full system access with minimal authentication requirements.

Earlier versions of this analysis (1)
v1 Mar 12, 2026 - 21:54 CVSS 6.3

A security flaw has been discovered in Wavlink WL-WN579A3 up to 20210219. Affected by this issue is the function DeleteMac of the file /cgi-bin/wireless.cgi. [CVSS 6.3 MEDIUM]

RemediationAI

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Affects Wl-Wn579A3 Firmware. A security flaw has been discovered in Wavlink WL-WN579A3 up to 20210219. Affected by this issue is the function DeleteMac of the file /cgi-bin/wireless.cgi. The manipulation of the argument delete_list results in command injection. The attack can be executed remotely. The vendor was contacted early about this disclosure but did not respond in any way.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.3 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

Lifecycle Timeline

2
PoC Detected
Feb 18, 2026 - 20:02 vuln.today
Public exploit code
CVE Published
Feb 16, 2026 - 02:16 nvd
MEDIUM 6.3

DescriptionCVE.org

A security flaw has been discovered in Wavlink WL-WN579A3 up to 20210219. Affected by this issue is the function DeleteMac of the file /cgi-bin/wireless.cgi. The manipulation of the argument delete_list results in command injection. The attack can be executed remotely. The vendor was contacted early about this disclosure but did not respond in any way.

Executive ViewAI

Why It Matters

Organizations using Wavlink WL-WN579A3 should be aware of moderate risk from CVE-2026-2529, a injection vulnerability rated CVSS 6.3. Exploitation could allow attackers to execute code or inject malicious input. Proof-of-concept code is publicly available. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Low
Compensating Controls

Apply vendor patch. If patching is delayed: deploy WAF rules, restrict network access, enable logging.

Threat Intelligence Overview

EPSS Score
0.4%
Top 41% exploitable
Exploit
POC
Public exploit code exists
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC Yes
EPSS 0.4%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
No
Human Impact
Low

Priority Score

52
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +32
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

OS command injection occurs when an application passes unsanitized user input directly into system shell commands.

Affected Products (CPE)CVE.org

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

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