CVE-2021-36181
A concurrent execution using shared resource with improper Synchronization vulnerability ('Race...
A concurrent execution using shared resource with improper Synchronization vulnerability ('Race Condition') in the customer database interface of FortiPortal before 6.0.6 may allow an authenticated, low-privilege user to bring the underlying database data into an inconsistent state via specific coordination of web requests.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
A concurrent execution using shared resource with improper Synchronization vulnerability ('Race Condition') in the customer database interface of FortiPortal before 6.0.6 may allow an authenticated, low-privilege user to bring the underlying database data into an inconsistent state via specific coordination of web requests.
- Record
CVE-2021-36181- CVSS 3.1
- 3.1 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:U/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-22802
A concurrent execution using shared resource with improper Synchronization vulnerability ('Race Condition') in the customer database interface of FortiPortal before 6.0.6 may allow an authenticated, low-privilege user to bring the underlying database data into an inconsistent state via specific coordination of web requests.
- Record
EUVD-2021-22802- CVSS 3.1
- 3.1 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:U/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-64xp-v3fr-3344No score
A concurrent execution using shared resource with improper Synchronization vulnerability ('Race...
A concurrent execution using shared resource with improper Synchronization vulnerability ('Race Condition') in the customer database interface of FortiPortal before 6.0.6 may allow an authenticated, low-privilege user to bring the underlying database data into an inconsistent state via specific coordination of web requests.
- Record
GHSA-64xp-v3fr-3344- Weakness
- CWE-362
- Updated
- 2026-11-02
NVD
A concurrent execution using shared resource with improper Synchronization vulnerability ('Race Condition') in the customer database interface of FortiPortal before 6.0.6 may allow an authenticated, low-privilege user to bring the underlying database data into an inconsistent state via specific coordination of web requests.
- Record
CVE-2021-36181- CVSS 3.1
- 3.1 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-362
- 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-2021-36181 is a low vulnerability (CVSS 3.1) in Fortinet Fortiportal, published November 2, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.45%, the 39th percentile. No source names a fixed version.