CVE-2021-24019: fortinet forticlient_endpoint_management_server Insufficient Session Expiration
Vulnerability summary
CVE-2021-24019 is a critical (CVSS 9.8) Insufficient Session Expiration vulnerability in fortinet forticlient_endpoint_management_server. EPSS estimates a 3.90% chance of exploitation in the next 30 days, higher than 90.1% of scored vulnerabilities.
Timeline
- 06-10-2021PublishedVulnerability first disclosed.
- 22-10-2024Last modifiedVulnerability information updated.
Description
An insufficient session expiration vulnerability [CWE- 613] in FortiClientEMS versions 6.4.2 and below, 6.2.8 and below may allow an attacker to reuse the unexpired admin user session IDs to gain admin privileges, should the attacker be able to obtain that session ID (via other, hypothetical attacks)
CVSS metrics
3 scores · 2 sources · 2 versions- CVE.orgCNA8.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:X/RC:XDiffers
EPSS trend
Probability
3.90%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
0.00 pp
From 3.90% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Fortinet2 products
- forticlient_endpoint_management_server< 6.2.9 | ≥ 6.4.0, < 6.4.2
- fortinet forticlientemsFortiClientEMS 6.4.2, 6.4.1, 6.4.0, 6.2.8, 6.2.7, 6.2.6, 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.2.0
1 vendor · 2 products