Vulnerability-Lookup

CNVD-2026-21561

Vulnerability from cnvd - Published: 2026-05-25

Title

Fortinet FortiClientEMS SQL注入漏洞（CNVD-2026-21561）

Description

Fortinet FortiClientEMS是一款企业级端点管理与安全解决方案，主要用于集中管理FortiClient终端安全软件。 Fortinet FortiClientEMS存在SQL注入漏洞。该漏洞源于未能正确中和SQL命令中的特殊元素，攻击者可利用该漏洞通过发送特制请求执行未经授权的代码或命令。

Severity

高

Patch Name

Fortinet FortiClientEMS SQL注入漏洞（CNVD-2026-21561）的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://fortiguard.fortinet.com/psirt/FG-IR-26-102

Reference

https://nvd.nist.gov/vuln/detail/CVE-2026-39809

Impacted products

Name
['Fortinet FortiClientEms >=7.0.0，<=7.0.13', 'Fortinet FortiClientEms >=7.2.0，<7.2.13', 'Fortinet FortiClientEms >=7.4.0，<7.4.6']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-39809",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2026-39809"
    }
  },
  "description": "Fortinet FortiClientEMS\u662f\u4e00\u6b3e\u4f01\u4e1a\u7ea7\u7aef\u70b9\u7ba1\u7406\u4e0e\u5b89\u5168\u89e3\u51b3\u65b9\u6848\uff0c\u4e3b\u8981\u7528\u4e8e\u96c6\u4e2d\u7ba1\u7406FortiClient\u7ec8\u7aef\u5b89\u5168\u8f6f\u4ef6\u3002\n\nFortinet FortiClientEMS\u5b58\u5728SQL\u6ce8\u5165\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u672a\u80fd\u6b63\u786e\u4e2d\u548cSQL\u547d\u4ee4\u4e2d\u7684\u7279\u6b8a\u5143\u7d20\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u53d1\u9001\u7279\u5236\u8bf7\u6c42\u6267\u884c\u672a\u7ecf\u6388\u6743\u7684\u4ee3\u7801\u6216\u547d\u4ee4\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://fortiguard.fortinet.com/psirt/FG-IR-26-102",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-21561",
  "openTime": "2026-05-25",
  "patchDescription": "Fortinet FortiClientEMS\u662f\u4e00\u6b3e\u4f01\u4e1a\u7ea7\u7aef\u70b9\u7ba1\u7406\u4e0e\u5b89\u5168\u89e3\u51b3\u65b9\u6848\uff0c\u4e3b\u8981\u7528\u4e8e\u96c6\u4e2d\u7ba1\u7406FortiClient\u7ec8\u7aef\u5b89\u5168\u8f6f\u4ef6\u3002\r\n\r\nFortinet FortiClientEMS\u5b58\u5728SQL\u6ce8\u5165\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u672a\u80fd\u6b63\u786e\u4e2d\u548cSQL\u547d\u4ee4\u4e2d\u7684\u7279\u6b8a\u5143\u7d20\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u53d1\u9001\u7279\u5236\u8bf7\u6c42\u6267\u884c\u672a\u7ecf\u6388\u6743\u7684\u4ee3\u7801\u6216\u547d\u4ee4\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Fortinet FortiClientEMS SQL\u6ce8\u5165\u6f0f\u6d1e\uff08CNVD-2026-21561\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Fortinet FortiClientEms \u003e=7.0.0\uff0c\u003c=7.0.13",
      "Fortinet FortiClientEms \u003e=7.2.0\uff0c\u003c7.2.13",
      "Fortinet FortiClientEms \u003e=7.4.0\uff0c\u003c7.4.6"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2026-39809",
  "serverity": "\u9ad8",
  "submitTime": "2026-04-15",
  "title": "Fortinet FortiClientEMS SQL\u6ce8\u5165\u6f0f\u6d1e\uff08CNVD-2026-21561\uff09"
}

CVE-2026-39809 (GCVE-0-2026-39809)

Vulnerability from cvelistv5 – Published: 2026-04-14 15:05 – Updated: 2026-04-15 03:58

Summary

A improper neutralization of special elements used in an sql command ('sql injection') vulnerability in Fortinet FortiClientEMS 7.4.0 through 7.4.5, FortiClientEMS 7.2.0 through 7.2.12, FortiClientEMS 7.0 all versions may allow attacker to execute unauthorized code or commands via sending crafted requests

Severity

6.2 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-14 00:00 UTC

CWE

CWE-89 - Execute unauthorized code or commands

Assigner

fortinet mitre root

References

1 reference

URL	Tags
https://fortiguard.fortinet.com/psirt/FG-IR-26-102

Impacted products

1 product

Vendor	Product	Version
Fortinet	FortiClientEMS	Affected: 7.4.3 , ≤ 7.4.4 (semver) Affected: 7.4.0 , ≤ 7.4.1 (semver) cpe:2.3:a:fortinet:forticlientems:7.4.4:::::::* cpe:2.3:a:fortinet:forticlientems:7.4.3:::::::* cpe:2.3:a:fortinet:forticlientems:7.4.1:::::::* cpe:2.3:a:fortinet:forticlientems:7.4.0:::::::*

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-39809",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-14T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-15T03:58:18.867Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:fortinet:forticlientems:7.4.4:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:forticlientems:7.4.3:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:forticlientems:7.4.1:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:forticlientems:7.4.0:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "product": "FortiClientEMS",
          "vendor": "Fortinet",
          "versions": [
            {
              "lessThanOrEqual": "7.4.4",
              "status": "affected",
              "version": "7.4.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.4.1",
              "status": "affected",
              "version": "7.4.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A improper neutralization of special elements used in an sql command (\u0027sql injection\u0027) vulnerability in Fortinet FortiClientEMS 7.4.0 through 7.4.5, FortiClientEMS 7.2.0 through 7.2.12, FortiClientEMS 7.0 all versions may allow attacker to execute unauthorized code or commands via sending crafted requests"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.2,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-89",
              "description": "Execute unauthorized code or commands",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-14T17:38:34.503Z",
        "orgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
        "shortName": "fortinet"
      },
      "references": [
        {
          "name": "https://fortiguard.fortinet.com/psirt/FG-IR-26-102",
          "url": "https://fortiguard.fortinet.com/psirt/FG-IR-26-102"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to FortiClientEMS version 7.4.6 or above\nUpgrade to FortiClientEMS version 7.4.5 or above\nUpgrade to FortiClientEMS version 7.2.13 or above"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
    "assignerShortName": "fortinet",
    "cveId": "CVE-2026-39809",
    "datePublished": "2026-04-14T15:05:56.647Z",
    "dateReserved": "2026-04-07T15:24:05.925Z",
    "dateUpdated": "2026-04-15T03:58:18.867Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.