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Vulnerabilities

Vulnerability · CVE-2026-3715

A vulnerability was found in Wavlink WL-WN579X3-C 231124.

Published Mar 8, 2026 · catalog updated Jun 17, 2026 · wl-wn579x3-c firmware

Check if you run it

No confirmed exploitation is on record for CVE-2026-3715. EPSS is 1.05%. Act only if a listed version of wl-wn579x3-c firmware is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.05%
Remediation
Advisory link
Affected products
cpe wavlink/wl-wn579x3-c firmware

A vulnerability was found in Wavlink WL-WN579X3-C 231124. This affects the function sub_40139C of the file /cgi-bin/firewall.cgi. Performing a manipulation of the argument del_flag results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made public and could be used. Upgrading to version 20260226 is able to mitigate this issue. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe wavlink/wl-wn579x3-c firmware231124

How to fix CVE-2026-3715

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-3715. EPSS is 1.05%. Act only if a listed version of wl-wn579x3-c firmware is installed.

Which versions are affected?

Compare what you have installed with wavlink/wl-wn579x3-c firmware 231124. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-119: Buffer Overflow; CWE-121: Stack-based Buffer Overflow. EPSS 1.05%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 8, 2026 · NIST NVD

    Detected

    A vulnerability was found in Wavlink WL-WN579X3-C 231124. This affects the function sub_40139C of the file /cgi-bin/firewall.cgi. Performing a manipulation of the argument del_flag results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made public and could be used. Upgrading to version 20260226 is able to mitigate this issue. You should upgrad

  2. Jun 17, 2026 · NIST NVD

    Updated

    A vulnerability was found in Wavlink WL-WN579X3-C 231124. This affects the function sub_40139C of the file /cgi-bin/firewall.cgi. Performing a manipulation of the argument del_flag results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made public and could be used. Upgrading to version 20260226 is able to mitigate this issue. You should upgrad

Sources

  • CVE.orgVulnerability recordCVE-2026-3715

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-3715

    30-day exploitation probability 1.0%

    first.org
  • NIST NVDVulnerability recordCVE-2026-3715

    A vulnerability was found in Wavlink WL-WN579X3-C 231124. This affects the function sub_40139C of the file /cgi-bin/firewall.cgi. Performing a manipulation of the argument del_flag results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.