CVE-2026-70465
A remote, anonymous attacker can exploit a vulnerability in Fortinet FortiClient to execute arbitrary code.
CSIRTS triage
- What
- A remote, anonymous attacker can exploit a vulnerability to execute arbitrary code.
- Who is affected
- Any FortiClient endpoint deployed and accessible remotely.
- Urgency
- High priority; unauthenticated remote code execution on endpoints requires immediate remediation.
- Action
- Apply Fortinet security patch for CVE-2026-70465 to all FortiClient installations immediately.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.55% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 43% of all EPSS-scored CVEs.
Advisory coverage (6)
- unknownNCSC-2026-0296 [1.00] [M/H] Vulnerability patched in Fortinet FortiClientncsc-nl · 2026-08-13
- high[NEW] [high] Fortinet FortiClient: Vulnerability enables code executioncert-bund · 2026-08-13
- unknownFortinet Products Multiple Vulnerabilitieshkcert · 2026-08-13
- unknownMultiple vulnerabilities in Fortinet products (August 13, 2026)cert-fr-avis · 2026-08-13
- highCVE-2026-70465: A buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fort…nvd · 2026-08-12
- unknownHeap overflow in kernel driver due to missing size validationfortinet · 2026-08-12
External references
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[](https://www.csirts.com/cve/CVE-2026-70465)