CVE-2021-26102

Published Dec 19, 2024 CVSS 3.1 · 9.8 Critical EPSS 19.7% KEV · Not listed
Description
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 specific configuration files will reset the Admin password to its default value.

Remediation

Vendor Solution

Please upgrade to FortiWAN version 4.5.8 or above Please upgrade to AscenLink version 7.2.24 or above

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics epss

{'score': 0.11353}

epss

{'score': 0.1258}

Type Values Removed Values Added
First Time appeared Fortinet
Fortinet fortiwan
Weaknesses CWE-22
CPEs cpe:2.3:a:fortinet:fortiwan:*:*:*:*:*:*:*:*
Vendors & Products Fortinet
Fortinet fortiwan
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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 specific configuration files will reset the Admin password to its default value.
Weaknesses CWE-305
References
Metrics cvssV3_1

{'score': 9.8, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
fortinet
Published
Updated
Dec 19, 2024, 3:17 PM
Reserved
Jan 25, 2021, 2:47 PM
Status
Analyzed
Published
Dec 19, 2024, 2:15 PM
Modified
Jun 17, 2026, 3:42 AM