CVE-2021-41031
highpriority · track · 31EPSS 0.005 · 41 %ileEURUUSEPSS · scored 2026-10-27
A relative path traversal vulnerability [CWE-23] in FortiClient for Windows versions 7.0.2 and prior, 6.4.6 and prior and 6.2.9 and below may allow a local unprivileged attacker to escalate their privileges to SYSTEM via the named pipe responsible for FortiESNAC service.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (7)
Products and version ranges known to be affected.
- Fortinet Fortinet FortiClientWindows≤ FortiClientWindows 7.0.2, 7.0.1, 7.0.0, 6.4.6, 6.4.5, 6.4.4, 6.4.3, 6.4.2, 6.4.1, 6.4.0, 6.2.9, 6.2.8, 6.2.7, 6.2.6, 6.2.5, 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.2.0enisa_euvdEU
also known as (5)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2021-41031/cnnvd
- https://fortiguard.com/advisory/FG-IR-21-190cnnvd
- https://fortiguard.fortinet.com/psirt/FG-IR-21-190Patchcnnvd
- https://vigilance.fr/vulnerability/Fortinet-FortiClient-privilege-escalation-via-FortiESNAC-38740cnnvd
- https://www.cybersecurity-help.cz/vdb/SB2022070530cnnvd
- https://fortiguard.com/advisory/FG-IR-21-190enisa_euvd
- https://fortiguard.com/advisory/FG-IR-21-190Broken LinkPatchVendor Advisorynvd
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