CVE-2021-26116: fortinet fortiauthenticator OS Command Injection
CVSS: 8.8v3.1HighModified
Published 06-04-2022Last modified 25-10-2024
Vulnerability summary
CVE-2021-26116 is a high (CVSS 8.8) OS Command Injection vulnerability in fortinet fortiauthenticator. EPSS estimates a 0.62% chance of exploitation in the next 30 days, higher than 48.8% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
0.62%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 06-04-2022PublishedVulnerability first disclosed.
- 25-10-2024Last modifiedVulnerability information updated.
Description
An improper neutralization of special elements used in an OS command vulnerability in the command line interpreter of FortiAuthenticator before 6.3.1 may allow an authenticated attacker to execute unauthorized commands via specifically crafted arguments to existing commands.
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSources2 sources · 6.7–8.8
- CVE.orgCNA6.7MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:U/RC:CDiffers
Medium 6.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.62%
Chance of exploitation in the next 30 days
Percentile
49%
Versus all other CVEs
30-day change
0.00 pp
From 0.62% on 19-09-2026
19-09-202619-10-2026
EPSS score0.62%
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
- fortiauthenticator≥ 5.0.0, < 6.3.1
- fortinet fortiauthenticatorFortiAuthenticator before 6.3.1
1 vendor · 2 products