CVE-2026-19983 (GCVE-0-2026-19983)
Vulnerability from cvelistv5 – Published: 2026-08-17 04:30 – Updated: 2026-08-17 15:29
VLAI
EPSS
VEX
Title
GL.iNet XE3000 NAS Command Service gl_nas_sys os command injection
Summary
A vulnerability was detected in GL.iNet A1300, AX1800, AXT1800, MT2500, MT3000, MT6000, X3000 and XE3000 4.8.x. This issue affects some unknown processing of the file /usr/bin/gl_nas_sys of the component NAS Command Service. The manipulation results in os command injection. The attack may be launched remotely. Upgrading to version 4.9.0 is capable of addressing this issue. It is suggested to upgrade the affected component. The vendor explains: "After our investigation, we have confirmed that the vulnerability described (...) does indeed exist."
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-17 15:29 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/391165 | vdb-entry |
| https://vuldb.com/vuln/391165/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-19983 | third-party-advisory |
| https://vuldb.com/submit/873919 | third-party-advisory |
| https://github.com/gl-inet/CVE-issues/blob/main/4… | related |
Impacted products
8 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| GL.iNet | A1300 |
Affected:
4.8.*
Unaffected: 4.9.0 cpe:2.3:a:gl.inet:a1300:*:*:*:*:*:*:*:* |
||
| GL.iNet | AX1800 |
Affected:
4.8.*
Unaffected: 4.9.0 cpe:2.3:a:gl.inet:ax1800:*:*:*:*:*:*:*:* |
||
| GL.iNet | AXT1800 |
Affected:
4.8.*
Unaffected: 4.9.0 cpe:2.3:a:gl.inet:axt1800:*:*:*:*:*:*:*:* |
||
| GL.iNet | MT2500 |
Affected:
4.8.*
Unaffected: 4.9.0 cpe:2.3:a:gl.inet:mt2500:*:*:*:*:*:*:*:* |
||
| GL.iNet | MT3000 |
Affected:
4.8.*
Unaffected: 4.9.0 cpe:2.3:a:gl.inet:mt3000:*:*:*:*:*:*:*:* |
||
| GL.iNet | MT6000 |
Affected:
4.8.*
Unaffected: 4.9.0 cpe:2.3:a:gl.inet:mt6000:*:*:*:*:*:*:*:* |
||
| GL.iNet | X3000 |
Affected:
4.8.*
Unaffected: 4.9.0 cpe:2.3:a:gl.inet:x3000:*:*:*:*:*:*:*:* |
||
| GL.iNet | XE3000 |
Affected:
4.8.*
Unaffected: 4.9.0 cpe:2.3:a:gl.inet:xe3000:*:*:*:*:*:*:*:* |
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The vendor explains: \\\"After our investigation, we have confirmed that the vulnerability described (...) does indeed exist.\\\"\"}], \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 6.9, \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X\", \"baseSeverity\": \"MEDIUM\"}}, {\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 8.3, \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L/E:X/RL:O/RC:C\", \"baseSeverity\": \"HIGH\"}}, {\"cvssV3_0\": {\"version\": \"3.0\", \"baseScore\": 8.3, \"vectorString\": \"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L/E:X/RL:O/RC:C\", \"baseSeverity\": \"HIGH\"}}, {\"cvssV2_0\": {\"version\": \"2.0\", \"baseScore\": 7.5, \"vectorString\": \"AV:N/AC:L/Au:N/C:P/I:P/A:P/E:ND/RL:OF/RC:C\"}}], \"timeline\": [{\"time\": \"2026-08-16T00:00:00.000Z\", \"lang\": \"en\", \"value\": \"Advisory disclosed\"}, {\"time\": \"2026-08-16T02:00:00.000Z\", \"lang\": \"en\", \"value\": \"VulDB entry created\"}, {\"time\": \"2026-08-16T15:43:55.000Z\", \"lang\": \"en\", \"value\": \"VulDB entry last update\"}], \"credits\": [{\"lang\": \"en\", \"value\": \"GLiNet (VulDB User)\", \"type\": \"reporter\"}, {\"lang\": \"en\", \"value\": \"VulDB CNA Team\", \"type\": \"coordinator\"}], \"references\": [{\"url\": \"https://vuldb.com/vuln/391165\", \"name\": \"VDB-391165 | GL.iNet XE3000 NAS Command Service gl_nas_sys os command injection\", \"tags\": [\"vdb-entry\"]}, {\"url\": \"https://vuldb.com/vuln/391165/cti\", \"name\": \"VDB-391165 | CTI Indicators (IOB, IOC, TTP, IOA)\", \"tags\": [\"signature\", \"permissions-required\"]}, {\"url\": \"https://vuldb.com/cve/CVE-2026-19983\", \"name\": \"CVE-2026-19983 | CVE Analysis and Report\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://vuldb.com/submit/873919\", \"name\": \"Submit #873919 | GL.iNet Router 4.8.x RCE\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://github.com/gl-inet/CVE-issues/blob/main/4.0.0/NAS%20Host-header%20bypass%20to%20unauthenticated%20root%20RCE.md\", \"tags\": [\"related\"]}], \"x_generator\": [\"VulDB PVTS v202608\"]}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-19983\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-17T15:29:02.892698Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-17T15:29:12.413Z\"}}]}",
"cveMetadata": "{\"cveId\": \"CVE-2026-19983\", \"assignerOrgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"VulDB\", \"dateReserved\": \"2026-08-16T13:38:32.594Z\", \"datePublished\": \"2026-08-17T04:30:11.277Z\", \"dateUpdated\": \"2026-08-17T15:29:21.838Z\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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