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Vulnerability record · CVE-2020-35769 · published 29 December 2020

CVE-2020-35769: Webmin vulnerability

Webmin · Webmin

miniserv.pl in Webmin 1.962 on Windows mishandles special characters in query arguments to the CGI program.

9.8 CVSS 3.1 Critical EPSS 1.8% · top 23.0%
9.8CVSS 3.1 base score, v2 7.5
1.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

miniserv.pl in Webmin 1.962 on Windows mishandles special characters in query arguments to the CGI program.

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

Affected products

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

References

LinkTags
https://github.com/webmin/webmin/commit/1163f3a7f418f249af64890f4636575e687e9de7#diff-9b33fd8f5603d4f0d1428689bc36f24af4 PatchThird Party Advisory
https://vigilance.fr/vulnerability/Webmin-code-execution-via-miniserv-pl-handle-request-34220 PatchThird Party Advisory
https://github.com/webmin/webmin/commit/1163f3a7f418f249af64890f4636575e687e9de7#diff-9b33fd8f5603d4f0d1428689bc36f24af4 PatchThird Party Advisory
https://vigilance.fr/vulnerability/Webmin-code-execution-via-miniserv-pl-handle-request-34220 PatchThird Party Advisory

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2020-35769), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.