Critical severity · published Apr 6, 2022
CVE-2021-26112
Multiple stack-based buffer overflow vulnerabilities [CWE-121] both in network daemons and in the command line interpreter of FortiWAN before 4.5.9 may allow an unauthenticated…
9.8
CVSS
1.7%
EPSS
No
On KEV
Description
Multiple stack-based buffer overflow vulnerabilities [CWE-121] both in network daemons and in the command line interpreter of FortiWAN before 4.5.9 may allow an unauthenticated attacker to potentially corrupt control data in memory and execute arbitrary code via specifically crafted requests.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.7% · higher than 78% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
Fortiwan · Fortinet
through 4.5.8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-26112
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-26112
Patch
https://fortiguard.com/psirt/FG-IR-21-065
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