CVE-2021-36181

Name: CVE-2021-36181
Creator: NVD / NIST
Published: 2021-11-02T18:15:08.607+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 3.1/10EPSS 0.44%

Last modified Jun 17, 2026

CVE-2021-36181 is a low-severity vulnerability rated 3.1/10 on the CVSS scale. 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.. EPSS estimates a 0.44% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

3.1/10

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS Probability

0.44%

34.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-362

Affected Software

Vendor	Product	Versions
Fortinet	Fortiportal	>= 4.0.0, < 6.0.6

References

https://fortiguard.com/advisory/FG-IR-21-102Vendor Advisory
https://fortiguard.com/advisory/FG-IR-21-102Vendor Advisory

Timeline

Published: Nov 2, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-36181?

How severe is CVE-2021-36181?

CVE-2021-36181 has a CVSS score of 3.1/10 (LOW severity). The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.

How do I fix CVE-2021-36181?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-36181?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST