Description
An incorrect parsing of numbers with different radices vulnerability [CWE-1389] in FortiProxy version 7.4.3 and below, version 7.2.10 and below, version 7.0.17 and below and FortiOS version 7.4.3 and below, version 7.2.8 and below, version 7.0.15 and below IP address validation feature may permit an unauthenticated attacker to bypass the IP blocklist via crafted requests.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Fortinet | FortiProxy | 7.4.0 – ≤ 7.4.3, 7.2.0 – ≤ 7.2.10, 7.0.0 – ≤ 7.0.18 | — |
| Fortinet | FortiOS | 7.4.0 – ≤ 7.4.3, 7.2.0 – ≤ 7.2.8, 7.0.0 – ≤ 7.0.15 | — |
Advisories 3
- ICSA-24-193-02 Siemens RUGGEDCOM APE 1808 CISA ICS & IT advisories · Jan 14, 2026
- SSA-698820 SSA-698820: Multiple Vulnerabilities in Fortigate NGFW Before V7.4.4 on RUGGEDCOM APE1808 Devices Siemens ProductCERT · Jan 13, 2026
- WID-SEC-2024-1570 Fortinet FortiOS und FortiProxy: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 9, 2024