9.8

CVE-2021-41025: fortinet fortinet fortiweb Race Condition

CVSS: 9.8v3.1CriticalModified
Published 08-12-2021Last modified 25-10-2024
Open JSON

Vulnerability summary

CVE-2021-41025 is a critical (CVSS 9.8) Race Condition vulnerability in fortinet fortinet fortiweb. EPSS estimates a 1.49% chance of exploitation in the next 30 days, higher than 73.7% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
1.49%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 08-12-2021
    PublishedVulnerability first disclosed.
  2. 25-10-2024
    Last modifiedVulnerability information updated.

Description

Multiple vulnerabilities in the authentication mechanism of confd in FortiWeb versions 6.4.1, 6.4.0, 6.3.0 through 6.3.15, 6.2.0 through 6.2.6, 6.1.0 through 6.1.2, 6.0.0 thorugh 6.0.7, including an instance of concurrent execution using shared resource with improper synchronization and one of authentication bypass by capture-replay, may allow a remote unauthenticated attacker to circumvent the authentication process and authenticate as a legitimate cluster peer.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.49%

Chance of exploitation in the next 30 days

Percentile

74%

Versus all other CVEs

30-day change

+0.05 pp

From 1.44% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.49%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Fortinet2 products
  • fortinet fortiwebFortiWeb 6.4.1, 6.4.0, 6.3.0 through 6.3.15, 6.2.0 through 6.2.6, 6.1.0 through 6.1.2, 6.0.0 thorugh 6.0.7
  • fortiweb≥ 6.0.0, ≤ 6.0.7 | ≥ 6.2.0, ≤ 6.2.6 | ≥ 6.3.0, ≤ 6.3.15 | 6.1.0 | 6.1.1 | 6.1.2 | 6.4.0 | 6.4.1 | 6.4.2

1 vendor · 2 products

References

1 links