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CVE-2026-18590

A vulnerability was determined in Wavlink WL-NU516U1 708c073-mt7628. Affected is the function set_sys_adm of the file adm.cgi of the component Admin Password Handler. This manipulation causes os command injection. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized. It is suggested to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affecte
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b221c44148c70fe1211aef21b66f61a68bc19aebe410f81100b60749557bb225
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 4 assertions

{"metric":{"baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2511db61fbacb122a52a284a51168aa44450974c2e04800ae3ea797999a83eb6 · sha256:a79f4e286aab364e… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2511db61fbacb122a52a284a51168aa44450974c2e04800ae3ea797999a83eb6 · sha256:a79f4e286aab364e… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"baseScore":6.5,"vectorString":"AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2511db61fbacb122a52a284a51168aa44450974c2e04800ae3ea797999a83eb6 · sha256:a79f4e286aab364e… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"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","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2511db61fbacb122a52a284a51168aa44450974c2e04800ae3ea797999a83eb6 · sha256:a79f4e286aab364e… · /containers/cna/metrics/0/cvssV4_0
cwe · 2 assertions

{"cweId":"CWE-77","description":"Command Injection","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2511db61fbacb122a52a284a51168aa44450974c2e04800ae3ea797999a83eb6 · sha256:a79f4e286aab364e… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-78","description":"OS Command Injection","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2511db61fbacb122a52a284a51168aa44450974c2e04800ae3ea797999a83eb6 · sha256:a79f4e286aab364e… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"cpes":["cpe:2.3:o:wavlink:wl-nu516u1_firmware:*:*:*:*:*:*:*:*"],"modules":["Admin Password Handler"],"product":"WL-NU516U1","vendor":"Wavlink","versions":[{"status":"affected","version":"708c073-mt7628"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2511db61fbacb122a52a284a51168aa44450974c2e04800ae3ea797999a83eb6 · sha256:a79f4e286aab364e… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2511db61fbacb122a52a284a51168aa44450974c2e04800ae3ea797999a83eb6 · sha256:a79f4e286aab364e… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2511db61fbacb122a52a284a51168aa44450974c2e04800ae3ea797999a83eb6 · sha256:a79f4e286aab364e… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"baseScore":6.5,"vectorString":"AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2511db61fbacb122a52a284a51168aa44450974c2e04800ae3ea797999a83eb6 · sha256:a79f4e286aab364e… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"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","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2511db61fbacb122a52a284a51168aa44450974c2e04800ae3ea797999a83eb6 · sha256:a79f4e286aab364e… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-77","description":"Command Injection","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2511db61fbacb122a52a284a51168aa44450974c2e04800ae3ea797999a83eb6 · sha256:a79f4e286aab364e… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-78","description":"OS Command Injection","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2511db61fbacb122a52a284a51168aa44450974c2e04800ae3ea797999a83eb6 · sha256:a79f4e286aab364e… · /containers/cna/problemTypes/0/descriptions/0

Source references

7 source assertions
{"tags":["broken-link","patch"],"url":"https://dl.wavlink.com/firmware/RD/WINSTAR_NU516U1-WO-A-2026-07-13-4b8a21f-mt7628-squashfs-sysupgrade.bin"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2511db61fbacb122a52a284a51168aa44450974c2e04800ae3ea797999a83eb6 · sha256:a79f4e286aab364e… · /containers/cna/references/6
{"tags":["broken-link"],"url":"https://github.com/oduoke567/WAVLINK-NU516U1-2026-05-1/blob/main/report2.md"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2511db61fbacb122a52a284a51168aa44450974c2e04800ae3ea797999a83eb6 · sha256:a79f4e286aab364e… · /containers/cna/references/5
{"name":"CVE-2026-18590 | CVE Analysis and Report","tags":["third-party-advisory"],"url":"https://vuldb.com/cve/CVE-2026-18590"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2511db61fbacb122a52a284a51168aa44450974c2e04800ae3ea797999a83eb6 · sha256:a79f4e286aab364e… · /containers/cna/references/2
{"name":"Submit #850527 | WAVLINK NU516U1 2026-05-15 (build 708c073-mt7628) Command Injection","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/850527"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2511db61fbacb122a52a284a51168aa44450974c2e04800ae3ea797999a83eb6 · sha256:a79f4e286aab364e… · /containers/cna/references/3
{"name":"Submit #850560 | WAVLINK NU516U1 2026-05-15 (build 708c073-mt7628) Command Injection (Duplicate)","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/850560"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2511db61fbacb122a52a284a51168aa44450974c2e04800ae3ea797999a83eb6 · sha256:a79f4e286aab364e… · /containers/cna/references/4
{"name":"VDB-385418 | Wavlink WL-NU516U1 Admin Password adm.cgi set_sys_adm os command injection","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/vuln/385418"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2511db61fbacb122a52a284a51168aa44450974c2e04800ae3ea797999a83eb6 · sha256:a79f4e286aab364e… · /containers/cna/references/0
{"name":"VDB-385418 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/385418/cti"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2511db61fbacb122a52a284a51168aa44450974c2e04800ae3ea797999a83eb6 · sha256:a79f4e286aab364e… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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