Vulnerability-Lookup

CVE-2026-39811 (GCVE-0-2026-39811)

Vulnerability from cvelistv5 – Published: 2026-04-14 15:38 – Updated: 2026-04-14 16:46

Summary

A integer overflow or wraparound vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.3, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4 all versions, FortiWeb 7.2 all versions, FortiWeb 7.0 all versions may allow attacker to denial of service via <insert attack vector here>

Severity ?

4.4 (Medium)


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

CWE

CWE-190 - Denial of service

Assigner

fortinet

References

URL

Tags

https://fortiguard.fortinet.com/psirt/FG-IR-26-108

Impacted products

	Vendor	Product	Version
	Fortinet	FortiWeb	Affected: 8.0.0 , ≤ 8.0.3 (semver) Affected: 7.6.0 , ≤ 7.6.6 (semver) Affected: 7.4.0 , ≤ 7.4.12 (semver) Affected: 7.2.0 , ≤ 7.2.12 (semver) Affected: 7.0.0 , ≤ 7.0.12 (semver) cpe:2.3:a:fortinet:fortiweb:8.0.3:::::::* cpe:2.3:a:fortinet:fortiweb:8.0.2:::::::* cpe:2.3:a:fortinet:fortiweb:8.0.1:::::::* cpe:2.3:a:fortinet:fortiweb:8.0.0:::::::* cpe:2.3:a:fortinet:fortiweb:7.6.6:::::::* cpe:2.3:a:fortinet:fortiweb:7.6.5:::::::* cpe:2.3:a:fortinet:fortiweb:7.6.4:::::::* cpe:2.3:a:fortinet:fortiweb:7.6.3:::::::* cpe:2.3:a:fortinet:fortiweb:7.6.2:::::::* cpe:2.3:a:fortinet:fortiweb:7.6.1:::::::* cpe:2.3:a:fortinet:fortiweb:7.6.0:::::::* cpe:2.3:a:fortinet:fortiweb:7.4.12:::::::* cpe:2.3:a:fortinet:fortiweb:7.4.11:::::::* cpe:2.3:a:fortinet:fortiweb:7.4.10:::::::* cpe:2.3:a:fortinet:fortiweb:7.4.9:::::::* cpe:2.3:a:fortinet:fortiweb:7.4.8:::::::* cpe:2.3:a:fortinet:fortiweb:7.4.7:::::::* cpe:2.3:a:fortinet:fortiweb:7.4.6:::::::* cpe:2.3:a:fortinet:fortiweb:7.4.5:::::::* cpe:2.3:a:fortinet:fortiweb:7.4.4:::::::* cpe:2.3:a:fortinet:fortiweb:7.4.3:::::::* cpe:2.3:a:fortinet:fortiweb:7.4.2:::::::* cpe:2.3:a:fortinet:fortiweb:7.4.1:::::::* cpe:2.3:a:fortinet:fortiweb:7.4.0:::::::* cpe:2.3:a:fortinet:fortiweb:7.2.12:::::::* cpe:2.3:a:fortinet:fortiweb:7.2.11:::::::* cpe:2.3:a:fortinet:fortiweb:7.2.10:::::::* cpe:2.3:a:fortinet:fortiweb:7.2.9:::::::* cpe:2.3:a:fortinet:fortiweb:7.2.8:::::::* cpe:2.3:a:fortinet:fortiweb:7.2.7:::::::* cpe:2.3:a:fortinet:fortiweb:7.2.6:::::::* cpe:2.3:a:fortinet:fortiweb:7.2.5:::::::* cpe:2.3:a:fortinet:fortiweb:7.2.4:::::::* cpe:2.3:a:fortinet:fortiweb:7.2.3:::::::* cpe:2.3:a:fortinet:fortiweb:7.2.2:::::::* cpe:2.3:a:fortinet:fortiweb:7.2.1:::::::* cpe:2.3:a:fortinet:fortiweb:7.2.0:::::::* cpe:2.3:a:fortinet:fortiweb:7.0.12:::::::* cpe:2.3:a:fortinet:fortiweb:7.0.11:::::::* cpe:2.3:a:fortinet:fortiweb:7.0.10:::::::* cpe:2.3:a:fortinet:fortiweb:7.0.9:::::::* cpe:2.3:a:fortinet:fortiweb:7.0.8:::::::* cpe:2.3:a:fortinet:fortiweb:7.0.7:::::::* cpe:2.3:a:fortinet:fortiweb:7.0.6:::::::* cpe:2.3:a:fortinet:fortiweb:7.0.5:::::::* cpe:2.3:a:fortinet:fortiweb:7.0.4:::::::* cpe:2.3:a:fortinet:fortiweb:7.0.3:::::::* cpe:2.3:a:fortinet:fortiweb:7.0.2:::::::* cpe:2.3:a:fortinet:fortiweb:7.0.1:::::::* cpe:2.3:a:fortinet:fortiweb:7.0.0:::::::*

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-39811

Vulnerability from fkie_nvd - Published: 2026-04-14 16:16 - Updated: 2026-04-14 16:16

Severity ?

4.9 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Summary

References

	URL	Tags
	psirt@fortinet.com	https://fortiguard.fortinet.com/psirt/FG-IR-26-108

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A integer overflow or wraparound vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.3, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4 all versions, FortiWeb 7.2 all versions, FortiWeb 7.0 all versions may allow attacker to denial of service via \u003cinsert attack vector here\u003e"
    }
  ],
  "id": "CVE-2026-39811",
  "lastModified": "2026-04-14T16:16:45.310",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 4.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 3.6,
        "source": "psirt@fortinet.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-04-14T16:16:45.310",
  "references": [
    {
      "source": "psirt@fortinet.com",
      "url": "https://fortiguard.fortinet.com/psirt/FG-IR-26-108"
    }
  ],
  "sourceIdentifier": "psirt@fortinet.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
      ],
      "source": "psirt@fortinet.com",
      "type": "Primary"
    }
  ]
}

GHSA-VF2H-7FG9-FHFJ

Vulnerability from github – Published: 2026-04-14 18:30 – Updated: 2026-04-14 18:30

Details

Severity ?

4.9 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-39811"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-14T16:16:45Z",
    "severity": "MODERATE"
  },
  "details": "A integer overflow or wraparound vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.3, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4 all versions, FortiWeb 7.2 all versions, FortiWeb 7.0 all versions may allow attacker to denial of service via \u003cinsert attack vector here\u003e",
  "id": "GHSA-vf2h-7fg9-fhfj",
  "modified": "2026-04-14T18:30:36Z",
  "published": "2026-04-14T18:30:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39811"
    },
    {
      "type": "WEB",
      "url": "https://fortiguard.fortinet.com/psirt/FG-IR-26-108"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

CVE-2026-39811 (GCVE-0-2026-39811)

FKIE_CVE-2026-39811

GHSA-VF2H-7FG9-FHFJ

Tags

Sightings

Nomenclature