Vulnerability-Lookup

CVE-2026-16520 (GCVE-0-2026-16520)

Vulnerability from cvelistv5 – Published: 2026-08-20 23:57 – Updated: 2026-08-21 20:08

Summary

Improper input validation and Exposure of sensitive information through data queries vulnerability in Genians Genian NAC V4.0, Genians Genian NAC V5.0, and Genians Genian ZTNA V6.0 allows SQL Injection and Authentication Bypass. This issue affects Genian NAC V4.0: from 4.0.0 before 4.0.175(Revision 150340); Genian NAC V5.0: from 5.0.0 before 5.0.65 LTS(Revision 150331), from 5.0.0 before 5.0.75 LTS(Revision 150330), from 5.0.0 before 5.0.87 Release Stable(Revision 150329), and from 5.0.0 before 5.0.88(Revision 150328); Genian ZTNA V6.0: from 6.0.0 before 6.0.26 LTS(Revision 150337), from 6.0.0 before 6.0.35 LTS(Revision 150336), from 6.0.0 before 6.0.47 Release Stable(Revision 150334), and from 6.0.0 before 6.0.48(Revision 150333).

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-21 19:49 UTC

CWE

CWE-20 - Improper input validation
CWE-202 - Exposure of sensitive information through data queries

Assigner

FSI mitre root

References

2 references

URL	Tags
https://docs.genians.com/release/ko/advisories/GN…
https://github.com/genians/security-research/secu…

Impacted products

3 products

Vendor	Product	Version	CPE status
Genians	Genian NAC V4.0	Affected: 4.0.0 , < 4.0.175(Revision 150340) (custom)	guessed
Genians	Genian NAC V5.0	Affected: 5.0.0 , < 5.0.65 LTS(Revision 150331) (custom) Affected: 5.0.0 , < 5.0.75 LTS(Revision 150330) (custom) Affected: 5.0.0 , < 5.0.87 Release Stable(Revision 150329) (custom) Affected: 5.0.0 , < 5.0.88(Revision 150328) (custom)	guessed
Genians	Genian ZTNA V6.0	Affected: 6.0.0 , < 6.0.26 LTS(Revision 150337) (custom) Affected: 6.0.0 , < 6.0.35 LTS(Revision 150336) (custom) Affected: 6.0.0 , < 6.0.47 Release Stable(Revision 150334) (custom) Affected: 6.0.0 , < 6.0.48(Revision 150333) (custom)	guessed

Credits

임동호(D2)

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-16520

Vulnerability from fkie_nvd - Published: 2026-08-21 00:16 - Updated: 2026-08-21 21:16

Severity

8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Summary

References

	URL	Tags
	09832df1-09c1-45b4-8a85-16c601d30feb	https://docs.genians.com/release/ko/advisories/GN-SA-2026-003.html
	09832df1-09c1-45b4-8a85-16c601d30feb	https://github.com/genians/security-research/security/advisories/GHSA-f6f5-wx2h-ccfw

Impacted products

	Vendor	Product	Version

JSON

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{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Genian NAC V4.0",
          "vendor": "Genians",
          "versions": [
            {
              "lessThan": "4.0.175(Revision 150340)",
              "status": "affected",
              "version": "4.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Genian NAC V5.0",
          "vendor": "Genians",
          "versions": [
            {
              "lessThan": "5.0.65 LTS(Revision 150331)",
              "status": "affected",
              "version": "5.0.0",
              "versionType": "custom"
            },
            {
              "lessThan": "5.0.75 LTS(Revision 150330)",
              "status": "affected",
              "version": "5.0.0",
              "versionType": "custom"
            },
            {
              "lessThan": "5.0.87 Release Stable(Revision 150329)",
              "status": "affected",
              "version": "5.0.0",
              "versionType": "custom"
            },
            {
              "lessThan": "5.0.88(Revision 150328)",
              "status": "affected",
              "version": "5.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Genian ZTNA V6.0",
          "vendor": "Genians",
          "versions": [
            {
              "lessThan": "6.0.26 LTS(Revision 150337)",
              "status": "affected",
              "version": "6.0.0",
              "versionType": "custom"
            },
            {
              "lessThan": "6.0.35 LTS(Revision 150336)",
              "status": "affected",
              "version": "6.0.0",
              "versionType": "custom"
            },
            {
              "lessThan": "6.0.47 Release Stable(Revision 150334)",
              "status": "affected",
              "version": "6.0.0",
              "versionType": "custom"
            },
            {
              "lessThan": "6.0.48(Revision 150333)",
              "status": "affected",
              "version": "6.0.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "09832df1-09c1-45b4-8a85-16c601d30feb"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper input validation and Exposure of sensitive information through data queries vulnerability in Genians Genian NAC V4.0, Genians Genian NAC V5.0, and Genians Genian ZTNA V6.0 allows SQL Injection and Authentication Bypass.\n\nThis issue affects Genian NAC V4.0: from 4.0.0 before 4.0.175(Revision 150340); \nGenian NAC V5.0: from 5.0.0 before 5.0.65 LTS(Revision 150331), from 5.0.0 before 5.0.75 LTS(Revision 150330), from 5.0.0 before 5.0.87 Release Stable(Revision 150329), and from 5.0.0 before 5.0.88(Revision 150328); \nGenian ZTNA V6.0: from 6.0.0 before 6.0.26 LTS(Revision 150337), from 6.0.0 before 6.0.35 LTS(Revision 150336), from 6.0.0 before 6.0.47 Release Stable(Revision 150334), and from 6.0.0 before 6.0.48(Revision 150333)."
    }
  ],
  "id": "CVE-2026-16520",
  "lastModified": "2026-08-21T21:16:54.190",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.7,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "09832df1-09c1-45b4-8a85-16c601d30feb",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-16520",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-21T19:49:05.287506Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-21T00:16:31.623",
  "references": [
    {
      "source": "09832df1-09c1-45b4-8a85-16c601d30feb",
      "url": "https://docs.genians.com/release/ko/advisories/GN-SA-2026-003.html"
    },
    {
      "source": "09832df1-09c1-45b4-8a85-16c601d30feb",
      "url": "https://github.com/genians/security-research/security/advisories/GHSA-f6f5-wx2h-ccfw"
    }
  ],
  "sourceIdentifier": "09832df1-09c1-45b4-8a85-16c601d30feb",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-202"
        }
      ],
      "source": "09832df1-09c1-45b4-8a85-16c601d30feb",
      "type": "Secondary"
    }
  ]
}

GHSA-78XJ-R982-5M2Q

Vulnerability from github – Published: 2026-08-21 00:31 – Updated: 2026-08-21 00:31

Details

This issue affects Genian NAC V4.0: from 4.0.0 before 4.0.175(Revision 150340); Genian NAC V5.0: from 5.0.0 before 5.0.65 LTS(Revision 150331), from 5.0.0 before 5.0.75 LTS(Revision 150330), from 5.0.0 before 5.0.87 Release Stable(Revision 150329), and from 5.0.0 before 5.0.88(Revision 150328); Genian ZTNA V6.0: from 6.0.0 before 6.0.26 LTS(Revision 150337), from 6.0.0 before 6.0.35 LTS(Revision 150336), from 6.0.0 before 6.0.47 Release Stable(Revision 150334), and from 6.0.0 before 6.0.48(Revision 150333).

Severity

8.7 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-16520"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-21T00:16:31Z",
    "severity": "HIGH"
  },
  "details": "Improper input validation and Exposure of sensitive information through data queries vulnerability in Genians Genian NAC V4.0, Genians Genian NAC V5.0, and Genians Genian ZTNA V6.0 allows SQL Injection and Authentication Bypass.\n\nThis issue affects Genian NAC V4.0: from 4.0.0 before 4.0.175(Revision 150340); \nGenian NAC V5.0: from 5.0.0 before 5.0.65 LTS(Revision 150331), from 5.0.0 before 5.0.75 LTS(Revision 150330), from 5.0.0 before 5.0.87 Release Stable(Revision 150329), and from 5.0.0 before 5.0.88(Revision 150328); \nGenian ZTNA V6.0: from 6.0.0 before 6.0.26 LTS(Revision 150337), from 6.0.0 before 6.0.35 LTS(Revision 150336), from 6.0.0 before 6.0.47 Release Stable(Revision 150334), and from 6.0.0 before 6.0.48(Revision 150333).",
  "id": "GHSA-78xj-r982-5m2q",
  "modified": "2026-08-21T00:31:24Z",
  "published": "2026-08-21T00:31:24Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/genians/security-research/security/advisories/GHSA-f6f5-wx2h-ccfw"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-16520"
    },
    {
      "type": "WEB",
      "url": "https://docs.genians.com/release/ko/advisories/GN-SA-2026-003.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

CVE-2026-16520 (GCVE-0-2026-16520)

FKIE_CVE-2026-16520

GHSA-78XJ-R982-5M2Q

Tags

Sightings

Nomenclature