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CVE-2026-18686

A vulnerability was detected in GL.iNet GL-MT3000 up to 4.4.5. The affected element is the function nas-web.add_user of the file /cgi-bin/glc of the component nas-web RPC Wrapper. Performing a manipulation results in command injection. The attack can be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8955b1787abb29bf7378f0cd4904634dd4e47dc92dd023bf52e2c3bbb4e23ca8
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":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3a7cc0c795cdaaa7e05813ce3be71a07345ff507fd589973adaa41bb707455e6 · sha256:bca60e6f0072d75a… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"baseScore":10,"vectorString":"AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:C","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3a7cc0c795cdaaa7e05813ce3be71a07345ff507fd589973adaa41bb707455e6 · sha256:bca60e6f0072d75a… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3a7cc0c795cdaaa7e05813ce3be71a07345ff507fd589973adaa41bb707455e6 · sha256:bca60e6f0072d75a… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":9.3,"baseSeverity":"CRITICAL","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3a7cc0c795cdaaa7e05813ce3be71a07345ff507fd589973adaa41bb707455e6 · sha256:bca60e6f0072d75a… · /containers/cna/metrics/0/cvssV4_0
cwe · 2 assertions

{"cweId":"CWE-74","description":"Injection","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3a7cc0c795cdaaa7e05813ce3be71a07345ff507fd589973adaa41bb707455e6 · sha256:bca60e6f0072d75a… · /containers/cna/problemTypes/1/descriptions/0

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

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3a7cc0c795cdaaa7e05813ce3be71a07345ff507fd589973adaa41bb707455e6 · sha256:bca60e6f0072d75a… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"cpes":["cpe:2.3:o:gl-inet:gl-mt3000_firmware:*:*:*:*:*:*:*:*"],"modules":["nas-web RPC Wrapper"],"product":"GL-MT3000","vendor":"GL.iNet","versions":[{"status":"affected","version":"4.4.0"},{"status":"affected","version":"4.4.1"},{"status":"affected","version":"4.4.2"},{"status":"affected","version":"4.4.3"},{"status":"affected","version":"4.4.4"},{"status":"affected","version":"4.4.5"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3a7cc0c795cdaaa7e05813ce3be71a07345ff507fd589973adaa41bb707455e6 · sha256:bca60e6f0072d75a… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3a7cc0c795cdaaa7e05813ce3be71a07345ff507fd589973adaa41bb707455e6 · sha256:bca60e6f0072d75a… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"baseScore":10,"vectorString":"AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:C","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3a7cc0c795cdaaa7e05813ce3be71a07345ff507fd589973adaa41bb707455e6 · sha256:bca60e6f0072d75a… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3a7cc0c795cdaaa7e05813ce3be71a07345ff507fd589973adaa41bb707455e6 · sha256:bca60e6f0072d75a… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":9.3,"baseSeverity":"CRITICAL","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3a7cc0c795cdaaa7e05813ce3be71a07345ff507fd589973adaa41bb707455e6 · sha256:bca60e6f0072d75a… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-74","description":"Injection","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3a7cc0c795cdaaa7e05813ce3be71a07345ff507fd589973adaa41bb707455e6 · sha256:bca60e6f0072d75a… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-77","description":"Command Injection","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3a7cc0c795cdaaa7e05813ce3be71a07345ff507fd589973adaa41bb707455e6 · sha256:bca60e6f0072d75a… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["exploit"],"url":"https://github.com/coconut652-7/IOT_Vul_Public/tree/main/Glinet/MT3000/nas-web/ADD_USER_ADD_SHARE"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3a7cc0c795cdaaa7e05813ce3be71a07345ff507fd589973adaa41bb707455e6 · sha256:bca60e6f0072d75a… · /containers/cna/references/4
{"name":"CVE-2026-18686 | CVE Analysis and Report","tags":["third-party-advisory"],"url":"https://vuldb.com/cve/CVE-2026-18686"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3a7cc0c795cdaaa7e05813ce3be71a07345ff507fd589973adaa41bb707455e6 · sha256:bca60e6f0072d75a… · /containers/cna/references/2
{"name":"Submit #856139 | GL.iNet MT3000 4.4.5 Command Injection","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/856139"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3a7cc0c795cdaaa7e05813ce3be71a07345ff507fd589973adaa41bb707455e6 · sha256:bca60e6f0072d75a… · /containers/cna/references/3
{"name":"VDB-385612 | GL.iNet GL-MT3000 nas-web RPC Wrapper glc nas-web.add_user command injection","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/vuln/385612"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3a7cc0c795cdaaa7e05813ce3be71a07345ff507fd589973adaa41bb707455e6 · sha256:bca60e6f0072d75a… · /containers/cna/references/0
{"name":"VDB-385612 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/385612/cti"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3a7cc0c795cdaaa7e05813ce3be71a07345ff507fd589973adaa41bb707455e6 · sha256:bca60e6f0072d75a… · /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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