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.
CVE-2026-2615
HIGHNVD 7.27.2—Elevated
EchelonGraph scoreMEDIUM confidence
Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-02-17. NVD baseline CVSS 7.2; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 12%CVSS: 7.2Exploit: Elevated riskExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.2
- EG Score
- 7.2(medium)
- EG Risk
- 48(Track*)EG Risk 48/100SSVC: Track*
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity72% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Watch closely — could escalate to Attend. - EPSS PROB
- 12%
- EPSS %ILE
- 96%
- KEV
- Not listed
Published
February 17, 2026
Last Modified
June 17, 2026
References (5)
- cna@vuldbhttps://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/singlePortForwardDelete.md
- cna@vuldbhttps://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/singlePortForwardDelete.md#exp
- cna@vuldbhttps://vuldb.com/?ctiid.346265
- cna@vuldbhttps://vuldb.com/?id.346265
- cna@vuldbhttps://vuldb.com/?submit.751047
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Frequently asked(5)
What is CVE-2026-2615?
CVE-2026-2615 is a high vulnerability published on February 17, 2026. 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…
When was CVE-2026-2615 disclosed?
CVE-2026-2615 was first published in the National Vulnerability Database on February 17, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-2615 actively exploited?
CVE-2026-2615 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 12% probability of exploitation in the next 30 days, which ranks it in the top 4.1% of all scored CVEs.
What is the CVSS score of CVE-2026-2615?
CVE-2026-2615 has a CVSS v3 base score of 7.2 (NVD).
How do I remediate CVE-2026-2615?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-2615, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-2615
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