CVE-2026-59840
Summary
| CVE | CVE-2026-59840 |
|---|---|
| State | PUBLISHED |
| Assigner | fortinet |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-07-14 16:17:03 UTC |
| Updated | 2026-07-14 16:38:41 UTC |
| Description | A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.2, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiProxy 7.6.0 through 7.6.5, FortiProxy 7.4.0 through 7.4.13, FortiProxy 7.2 all versions may allow attacker to information disclosure via <insert attack vector here> |
Risk And Classification
Primary CVSS: v3.1 4.3 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Problem Types: CWE-126 | CWE-126 Information disclosure
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 4.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| 3.1 | CNA | CVSS | 4.1 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
LowIntegrity
NoneAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Fortinet | FortiOS | affected 7.6.0 7.6.2 semver | Not specified |
| CNA | Fortinet | FortiOS | affected 7.4.0 7.4.8 semver | Not specified |
| CNA | Fortinet | FortiOS | affected 7.2.0 7.2.13 semver | Not specified |
| CNA | Fortinet | FortiOS | affected 7.0.0 7.0.19 semver | Not specified |
| CNA | Fortinet | FortiOS | affected 6.4.0 6.4.16 semver | Not specified |
| CNA | Fortinet | FortiPAM | affected 1.7.0 | Not specified |
| CNA | Fortinet | FortiPAM | affected 1.6.0 1.6.2 semver | Not specified |
| CNA | Fortinet | FortiPAM | affected 1.5.0 1.5.1 semver | Not specified |
| CNA | Fortinet | FortiPAM | affected 1.4.0 1.4.3 semver | Not specified |
| CNA | Fortinet | FortiPAM | affected 1.3.0 1.3.1 semver | Not specified |
| CNA | Fortinet | FortiPAM | affected 1.2.0 | Not specified |
| CNA | Fortinet | FortiPAM | affected 1.1.0 1.1.2 semver | Not specified |
| CNA | Fortinet | FortiPAM | affected 1.0.0 1.0.3 semver | Not specified |
| CNA | Fortinet | FortiSwitchManager | affected 7.2.0 7.2.7 semver | Not specified |
| CNA | Fortinet | FortiSwitchManager | affected 7.0.0 7.0.6 semver | Not specified |
| CNA | Fortinet | FortiProxy | affected 7.6.0 7.6.5 semver | Not specified |
| CNA | Fortinet | FortiProxy | affected 7.4.0 7.4.13 semver | Not specified |
| CNA | Fortinet | FortiProxy | affected 7.2.0 7.2.16 semver | Not specified |
| CNA | Fortinet | FortiProxy | affected 7.0.0 7.0.23 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| fortiguard.fortinet.com/psirt/FG-IR-26-154 | [email protected] | fortiguard.fortinet.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
Solutions
CNA: Upgrade to FortiOS version 7.6.4 or above Upgrade to FortiOS version 7.4.9 or above Fortinet remediated this issue in FortiSASE version 25.4.b and hence customers do not need to perform any action. Upgrade to FortiProxy version 7.6.6 or above Upgrade to FortiProxy version 7.4.14 or above
There are currently no legacy QID mappings associated with this CVE.