DoS due to unsafe function in signal handler
Summary
CVSSv3 Score: 5.2 A use of potentially Dangerous Function vulnerability [CWE-676] in FortiAnalyzer and FortiManager API may allow an authenticated attacker to cause a system hang via multiple specially crafted HTTP requests causing crashes. This happens if internal locks are aligned, which is out of control of the attacker. Revised on 2026-05-12 00:00:00
- FortiAnalyzer 7.6: 7.6.0 through 7.6.4
- FortiAnalyzer 7.4: 7.4.0 through 7.4.8
- FortiAnalyzer 7.2: 7.2 all versions
- FortiAnalyzer 7.0: 7.0 all versions
- FortiAnalyzer 6.4: 6.4 all versions
- FortiManager 7.6: 7.6.0 through 7.6.4
- FortiManager 7.4: 7.4.0 through 7.4.8
- FortiManager 7.2: 7.2 all versions
- FortiManager 7.0: 7.0 all versions
- FortiManager 6.4: 6.4 all versions
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
- FortiAnalyzer 7.6: 7.6.5
- FortiAnalyzer 7.4: 7.4.9
- FortiAnalyzer 7.2: migrate to a fixed release
- FortiAnalyzer 7.0: migrate to a fixed release
- FortiAnalyzer 6.4: migrate to a fixed release
- FortiManager 7.6: 7.6.5
- FortiManager 7.4: 7.4.9
- FortiManager 7.2: migrate to a fixed release
- FortiManager 7.0: migrate to a fixed release
- FortiManager 6.4: migrate to a fixed release
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
Mitigation checklist
- Upgrade per the Affected/Solution table: FortiAnalyzer 7.6: 7.6.5; FortiAnalyzer 7.4: 7.4.9; FortiAnalyzer 7.2: migrate to a fixed release; FortiAnalyzer 7.0: migrate to a fixed release; FortiAnalyzer 6.4: migrate to a fixed release; ….
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
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