CVE-2021-22131
A improper validation of certificate with host mismatch in Fortinet FortiTokenAndroid version 5.0...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- High
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2021-22131- CVSS 3.1
- 6.4 Medium
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 - Updated
- 2026-11-02
EUVDEUVD-2021-9287
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.
- Record
EUVD-2021-9287- CVSS 3.1
- 6.4 Medium
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 - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-q9f5-mqv7-56mh
A improper validation of certificate with host mismatch in Fortinet FortiTokenAndroid version 5.0...
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.
- Record
GHSA-q9f5-mqv7-56mh- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N - Weakness
- CWE-295
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2021-22131- CVSS 3.1
- 6.4 Medium
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:H - CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N - Weakness
- CWE-295
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-22131 is a medium vulnerability (CVSS 6.4) in Fortinet Fortitokenandroid, Fortinet Fortitokenios, Fortinet Fortitokenwinapp, published July 18, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. No source names a fixed version.