Fortinet FortiWeb up to 7.4.8/7.6.3 CLI Command stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Fortinet FortiWeb up to 7.4.8/7.6.3. The affected element is an unknown function of the component CLI Command Handler. The manipulation leads to stack-based overflow. This vulnerability is uniquely identified as CVE-2025-32766. Local access is required to approach this attack. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Fortinet FortiWeb up to 7.4.8/7.6.3. It has been rated as critical. This issue affects some unknown processing of the component CLI Command Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A stack-based buffer overflow vulnerability [CWE-121] in Fortinet FortiWeb CLI version 7.6.0 through 7.6.3 and before 7.4.8 allows a privileged attacker to execute arbitrary code or commands via crafted CLI commands

It is possible to read the advisory at fortiguard.fortinet.com. The identification of this vulnerability is CVE-2025-32766 since 04/10/2025. The exploitation is known to be difficult. Attacking locally is a requirement. Additional levels of successful authentication are required for exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2025-1805). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Fortinet FortiWeb

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 6.4
VulDB Temp Score: 6.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.7
NVD Vector: 🔒

CNA Base Score: 6.4
CNA Vector (fortinet): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/10/2025 CVE reserved
08/12/2025 +124 days Advisory disclosed
08/12/2025 +0 days VulDB entry created
08/18/2025 +6 days VulDB entry last update

Sourcesinfo

Vendor: fortinet.com

Advisory: FG-IR-25-383
Status: Confirmed

CVE: CVE-2025-32766 (🔒)
GCVE (CVE): GCVE-0-2025-32766
GCVE (VulDB): GCVE-100-319787
CERT Bund: WID-SEC-2025-1805 - Fortinet FortiWeb: Mehrere Schwachstellen

Entryinfo

Created: 08/12/2025 23:28
Updated: 08/18/2025 12:05
Changes: 08/12/2025 23:28 (65), 08/14/2025 09:37 (12), 08/18/2025 12:05 (7)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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