Fortinet FortiOS Out-of-Bound Write Vulnerability

Critical Threat Advisory: This vulnerability is documented in active Ransomware campaigns. Immediate remediation required.

Technical Severity

CVSS v3.1 Metrics

CRITICAL

9.6 / 10

Minimal Risk Critical

Vector Specification

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

Exploitation Likelihood

EPSS Prediction

92.91 %

Predictive Probability

Percentile Rank

99.8 th

Documented as more likely to be exploited than 99.8% of known CVEs.

Detection Date

Feb 09, 2024

Remediation Due

Feb 16, 2024

CISA Catalog Active

Threat Analysis

Fortinet FortiOS contains an out-of-bound write vulnerability that allows a remote unauthenticated attacker to execute code or commands via specially crafted HTTP requests.

Remediation Directive

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Asset Context

Vendor Identity

Fortinet

Affected Product

FortiOS

Ransomware Status

Campaign Use Known

Weakness Classification

CWE-787

External Intelligence

https://fortiguard.fortinet.com/psirt/FG-IR-24-015

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2024-21762