Vulnerability in Fortinet Fortiwan
CVE-2021-26102
A relative path traversal vulnerability (CWE-23) in FortiWAN version 4.5.7 and below, 4.4 all versions may allow a remote non-authenticated attacker to delete files on the system by sending a crafted POST request. In particular, deleting s…
EPSS: 0.608 (98.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:U/RC:C.
Affected products
- Fortinet Fortiwan — versions 4.5.0, 4.4.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2021-26102?
- CVE-2021-26102 is a critical-severity vulnerability in Fortinet Fortiwan, classified under Authentication Bypass by Primary Weakness. CVSS score: 9.8/10. Published 2024-12-19.
- How severe is CVE-2021-26102?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-26102 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.