CVE-2021-22131 json
A improper validation of certificate with host mismatch in Fortinet FortiTokenAndroid version 5.0.3 and below, Fortinet FortiTokeniOS versi…
published 2022-07-18 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-9287
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 3%
- public exploits
- 0
- none known
Summary
A improper validation of certificate with host mismatch in Fortinet FortiTokenAndroid version 5.0.3 and below, Fortinet FortiTokeniOS version 5.2.0 and below, Fortinet FortiTokenWinApp version 4.0.3 and below allows attacker to retrieve information disclosed via man-in-the-middle attacks.
Patch / fix
- fortiguard.com/advisory/FG-IR-21-024 advisory
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:H/E:P/RL:X/RC:C |
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:H |
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N |
Affected products
- Fortinet Fortinet FortiTokenAndroid, Fortinet FortiTokeniOS, Fortinet FortiTokenWinApp
Classification
- Weakness
-
- CWE-295 Improper Certificate Validation
- Technology feeds
References
-
fortiguard.com
/advisory/FG-IR-21-024
patch, vendor-advisory
Sources
- CVE List CVE-2021-22131
- NVD CVE-2021-22131
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.