CVE-2022-27491 json
A improper verification of source of a communication channel in Fortinet FortiOS with IPS engine version 7.201 through 7.214, 7.001 through…
published 2022-09-06 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-31992
- cvss
- 6.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 74%
- public exploits
- 0
- none known
Summary
A improper verification of source of a communication channel in Fortinet FortiOS with IPS engine version 7.201 through 7.214, 7.001 through 7.113, 6.001 through 6.121, 5.001 through 5.258 and before 4.086 allows a remote and unauthenticated attacker to trigger the sending of "blocked page" HTML data to an arbitrary victim via crafted TCP requests, potentially flooding the victim.
Patch / fix
- fortinet fortios 6.2.11, 6.4.9, 7.0.6
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
1.48% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H/E:F/RL:U/RC:C |
| CNA | 3.1 | 6.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
- Fortinet Fortinet FortiOS
Classification
- Technology feeds
References
-
fortiguard.com
/psirt/FG-IR-22-073
vendor-advisory
Sources
- CVE List CVE-2022-27491
- NVD CVE-2022-27491
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