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Vulnerabilities

Vulnerability · CVE-2026-2615

A flaw has been found in Wavlink WL-NU516U1 up to 20251208.

Published Feb 17, 2026 · catalog updated Feb 23, 2026 · WAVLINK WL-NU516U1

Last checked Nov 13, 2026. A connected source was read within the last 7 days.

Check this week

CVE-2026-2615 is not in CISA KEV. FIRST estimates a 13.21% chance of exploitation in the next 30 days. Check whether you run WAVLINK WL-NU516U1.

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.

Same product and reporting

Severity
High8.6
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
13.21%
Remediation
Vendor / distro source
Affected products
vendor WAVLINK WL-NU516U1 20251208

A flaw has been found in Wavlink WL-NU516U1 up to 20251208. The affected element is the function singlePortForwardDelete of the file /cgi-bin/firewall.cgi. Executing a manipulation of the argument del_flag can lead to command injection. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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.

  • vendor WAVLINK WL-NU516U1 2025120820251208

How to fix CVE-2026-2615

What to do

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

Should you patch?

CVE-2026-2615 is not in CISA KEV. FIRST estimates a 13.21% chance of exploitation in the next 30 days. Check whether you run WAVLINK WL-NU516U1.

Which versions are affected?

Compare what you have installed with WAVLINK WL-NU516U1 20251208 20251208. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 13.21%. 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.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 17, 2026 · EUVD

    Detected

    A flaw has been found in Wavlink WL-NU516U1 up to 20251208. The affected element is the function singlePortForwardDelete of the file /cgi-bin/firewall.cgi. Executing a manipulation of the argument del_flag can lead to command injection. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in an

  2. Feb 23, 2026 · EUVD

    Updated

    A flaw has been found in Wavlink WL-NU516U1 up to 20251208. The affected element is the function singlePortForwardDelete of the file /cgi-bin/firewall.cgi. Executing a manipulation of the argument del_flag can lead to command injection. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in an

Sources

  • CVE.orgVulnerability recordCVE-2026-2615

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-2615

    30-day exploitation probability 13.21%

    first.org
  • EUVDVulnerability recordEUVD-2026-7662

    A flaw has been found in Wavlink WL-NU516U1 up to 20251208. The affected element is the function singlePortForwardDelete of the file /cgi-bin/firewall.cgi. Executing a manipulation of the argument del_flag can lead to command injection. The attack may be launched remotely. The ex

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 13, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 13, 2026
  • CVE.orgNov 9, 2026
  • EUVDNov 9, 2026