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Vulnerability record · CVE-2021-34805 · published 31 January 2022

CVE-2021-34805: Land-software faust iserver path traversal vulnerability

Land Software · Faust Iserver

An issue was discovered in FAUST iServer before 9.0.019.019.7. For each URL request, it accesses the corresponding .fau file on the operating system without preventing %2e%2e%5c directory traversal.

7.5 CVSS 3.1 High EPSS 27% · top 2.0% CWE-22 · Path traversal
7.5CVSS 3.1 base score, v2 7.8
27%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

An issue was discovered in FAUST iServer before 9.0.019.019.7. For each URL request, it accesses the corresponding .fau file on the operating system without preventing %2e%2e%5c directory traversal.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/165701/FAUST-iServer-9.0.018.018.4-Local-File-Inclusion.html ExploitThird Party AdvisoryVDB Entry
http://www.land-software.de/lfs.fau?prj=iweb&dn=faust+iserver ProductVendor Advisory
https://sec-consult.com/vulnerability-lab/ ExploitThird Party Advisory
http://packetstormsecurity.com/files/165701/FAUST-iServer-9.0.018.018.4-Local-File-Inclusion.html ExploitThird Party AdvisoryVDB Entry
http://www.land-software.de/lfs.fau?prj=iweb&dn=faust+iserver ProductVendor Advisory
https://sec-consult.com/vulnerability-lab/ ExploitThird Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-34805), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.