CVE-2026-71408: Denial of service in Fortinet FortiOS
CVE-2026-71408 is a medium severity denial of service vulnerability in Fortinet FortiOS. It affects FortiOS versions 7.6.0 through 7.6.6, all versions of 7.4, and all versions of 7.2. The issue arises from allocation of resources without limits or throttling, potentially allowing an attacker to cause denial of service. An official fix is available from the vendor.
AI Analysis
Technical Summary
This vulnerability in Fortinet FortiOS involves uncontrolled allocation of resources without limits or throttling, which may allow an attacker to cause a denial of service condition. It affects FortiOS versions 7.6.0 through 7.6.6, all 7.4 versions, and all 7.2 versions. The CVSS 3.1 base score is 5.0, indicating medium severity. The vulnerability has been officially fixed by Fortinet, and patches are available.
Potential Impact
Successful exploitation can cause denial of service by exhausting system resources, impacting availability of FortiOS devices. There is no impact on confidentiality or integrity. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Apply the official patches provided by Fortinet for FortiOS versions 7.6.0 through 7.6.6, all 7.4 versions, and all 7.2 versions to remediate this vulnerability. Since an official fix is available, updating to patched versions is the recommended mitigation.
CVE-2026-71408: Denial of service in Fortinet FortiOS
Description
CVE-2026-71408 is a medium severity denial of service vulnerability in Fortinet FortiOS. It affects FortiOS versions 7.6.0 through 7.6.6, all versions of 7.4, and all versions of 7.2. The issue arises from allocation of resources without limits or throttling, potentially allowing an attacker to cause denial of service. An official fix is available from the vendor.
CVSS v3.1
Score 5.0medium
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Fortinet FortiOS involves uncontrolled allocation of resources without limits or throttling, which may allow an attacker to cause a denial of service condition. It affects FortiOS versions 7.6.0 through 7.6.6, all 7.4 versions, and all 7.2 versions. The CVSS 3.1 base score is 5.0, indicating medium severity. The vulnerability has been officially fixed by Fortinet, and patches are available.
Potential Impact
Successful exploitation can cause denial of service by exhausting system resources, impacting availability of FortiOS devices. There is no impact on confidentiality or integrity. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Apply the official patches provided by Fortinet for FortiOS versions 7.6.0 through 7.6.6, all 7.4 versions, and all 7.2 versions to remediate this vulnerability. Since an official fix is available, updating to patched versions is the recommended mitigation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- fortinet
- Date Reserved
- 2026-08-06T12:21:13.400Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
Threat ID: 6a7c6a15bf8831d5398b361a
Added to database: 08/12/2026, 12:41:57 UTC
Last enriched: 08/12/2026, 12:58:37 UTC
Last updated: 08/12/2026, 13:08:21 UTC
Views: 4
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.