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CVE-2026-59840

Type: advisorySource: Official CVE List1 source record

A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiProxy 7.6.0 through 7.6.5, FortiProxy 7.4.0 through 7.4.13, FortiProxy 7.2 all versions, FortiProxy 7.0 all versions may allow attacker to information disclosure via

Announced Group revision 1
Original source ↗

CVE-2026-59840

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-59840

FortiOS

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

FortiPAM

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

FortiSwitchManager

Source reference: /containers/cna/affected/2/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

FortiProxy

Source reference: /containers/cna/affected/3/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "cpes": [
      "cpe:2.3:o:fortinet:fortios:7.6.3:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.6.2:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.6.1:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.6.0:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.4.8:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.4.7:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.4.6:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.4.5:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.4.4:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.4.3:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.4.2:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.4.1:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.4.0:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.2.13:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.2.12:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.2.11:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.2.10:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.2.9:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.2.8:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.2.7:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.2.6:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.2.5:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.2.4:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.2.3:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.2.2:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.2.1:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.2.0:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.0.19:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.0.18:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.0.17:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.0.16:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.0.15:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.0.14:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.0.13:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.0.12:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.0.11:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.0.10:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.0.9:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.0.8:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.0.7:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.0.6:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.0.5:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.0.4:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.0.3:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.0.2:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.0.1:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:7.0.0:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:6.4.16:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:6.4.15:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:6.4.14:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:6.4.13:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:6.4.12:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:6.4.11:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:6.4.10:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:6.4.9:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:6.4.8:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:6.4.7:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:6.4.6:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:6.4.5:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:6.4.4:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:6.4.3:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:6.4.2:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:6.4.1:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortios:6.4.0:*:*:*:*:*:*:*"
    ],
    "vendor": "Fortinet",
    "product": "FortiOS",
    "versions": [
      {
        "status": "affected",
        "version": "7.6.0",
        "versionType": "semver",
        "lessThanOrEqual": "7.6.3"
      },
      {
        "status": "affected",
        "version": "7.4.0",
        "versionType": "semver",
        "lessThanOrEqual": "7.4.8"
      },
      {
        "status": "affected",
        "version": "7.2.0",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.13"
      },
      {
        "status": "affected",
        "version": "7.0.0",
        "versionType": "semver",
        "lessThanOrEqual": "7.0.19"
      },
      {
        "status": "affected",
        "version": "6.4.0",
        "versionType": "semver",
        "lessThanOrEqual": "6.4.16"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "cpes": [
      "cpe:2.3:o:fortinet:fortipam:1.7.0:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortipam:1.6.2:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortipam:1.6.1:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortipam:1.6.0:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortipam:1.5.1:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortipam:1.5.0:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortipam:1.4.3:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortipam:1.4.2:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortipam:1.4.1:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortipam:1.4.0:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortipam:1.3.1:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortipam:1.3.0:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortipam:1.2.0:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortipam:1.1.2:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortipam:1.1.1:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortipam:1.1.0:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortipam:1.0.3:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortipam:1.0.2:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortipam:1.0.1:*:*:*:*:*:*:*",
      "cpe:2.3:o:fortinet:fortipam:1.0.0:*:*:*:*:*:*:*"
    ],
    "vendor": "Fortinet",
    "product": "FortiPAM",
    "versions": [
      {
        "status": "affected",
        "version": "1.7.0"
      },
      {
        "status": "affected",
        "version": "1.6.0",
        "versionType": "semver",
        "lessThanOrEqual": "1.6.2"
      },
      {
        "status": "affected",
        "version": "1.5.0",
        "versionType": "semver",
        "lessThanOrEqual": "1.5.1"
      },
      {
        "status": "affected",
        "version": "1.4.0",
        "versionType": "semver",
        "lessThanOrEqual": "1.4.3"
      },
      {
        "status": "affected",
        "version": "1.3.0",
        "versionType": "semver",
        "lessThanOrEqual": "1.3.1"
      },
      {
        "status": "affected",
        "version": "1.2.0"
      },
      {
        "status": "affected",
        "version": "1.1.0",
        "versionType": "semver",
        "lessThanOrEqual": "1.1.2"
      },
      {
        "status": "affected",
        "version": "1.0.0",
        "versionType": "semver",
        "lessThanOrEqual": "1.0.3"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "cpes": [
      "cpe:2.3:a:fortinet:fortiswitchmanager:7.2.7:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiswitchmanager:7.2.6:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiswitchmanager:7.2.5:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiswitchmanager:7.2.4:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiswitchmanager:7.2.3:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiswitchmanager:7.2.2:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiswitchmanager:7.2.1:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiswitchmanager:7.2.0:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiswitchmanager:7.0.6:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiswitchmanager:7.0.5:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiswitchmanager:7.0.4:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiswitchmanager:7.0.3:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiswitchmanager:7.0.2:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiswitchmanager:7.0.1:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiswitchmanager:7.0.0:*:*:*:*:*:*:*"
    ],
    "vendor": "Fortinet",
    "product": "FortiSwitchManager",
    "versions": [
      {
        "status": "affected",
        "version": "7.2.0",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.7"
      },
      {
        "status": "affected",
        "version": "7.0.0",
        "versionType": "semver",
        "lessThanOrEqual": "7.0.6"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "cpes": [
      "cpe:2.3:a:fortinet:fortiproxy:7.6.5:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.6.4:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.6.3:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.6.2:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.6.1:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.6.0:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.4.13:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.4.12:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.4.11:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.4.10:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.4.9:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.4.8:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.4.7:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.4.6:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.4.5:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.4.4:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.4.3:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.4.2:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.4.1:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.4.0:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.2.16:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.2.15:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.2.14:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.2.13:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.2.12:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.2.11:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.2.10:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.2.9:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.2.8:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.2.7:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.2.6:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.2.5:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.2.4:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.2.3:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.2.2:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.2.1:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.2.0:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.23:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.22:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.21:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.20:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.19:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.18:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.17:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.16:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.15:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.14:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.13:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.12:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.11:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.10:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.9:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.8:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.7:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.6:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.5:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.4:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.3:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.2:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.1:*:*:*:*:*:*:*",
      "cpe:2.3:a:fortinet:fortiproxy:7.0.0:*:*:*:*:*:*:*"
    ],
    "vendor": "Fortinet",
    "product": "FortiProxy",
    "versions": [
      {
        "status": "affected",
        "version": "7.6.0",
        "versionType": "semver",
        "lessThanOrEqual": "7.6.5"
      },
      {
        "status": "affected",
        "version": "7.4.0",
        "versionType": "semver",
        "lessThanOrEqual": "7.4.13"
      },
      {
        "status": "affected",
        "version": "7.2.0",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.16"
      },
      {
        "status": "affected",
        "version": "7.0.0",
        "versionType": "semver",
        "lessThanOrEqual": "7.0.23"
      }
    ],
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-59840

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#28461 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2026-59840 · Revision 1Source updated