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Vulnerability record · CVE-2021-45427 · published 30 December 2021

CVE-2021-45427: Emerson xweb300d evo firmware path traversal vulnerability

Emerson · Xweb300d Evo Firmware

Emerson XWEB 300D EVO 3.0.7--3ee403 is affected by: unauthenticated arbitrary file deletion due to path traversal. An attacker can browse and delete files without any authentication due to incorrect access control and directory traversal.

9.8 CVSS 3.1 Critical EPSS 19% · top 2.8% CWE-22 · Path traversal
9.8CVSS 3.1 base score, v2 7.5
19%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Emerson XWEB 300D EVO 3.0.7--3ee403 is affected by: unauthenticated arbitrary file deletion due to path traversal. An attacker can browse and delete files without any authentication due to incorrect access control and directory traversal.

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://drive.google.com/file/d/1IN7p9OKRgdszMVC1TKuZQDa4ySCPmQzO/view?usp=sharing Third Party Advisory
https://drive.google.com/file/d/1RegGlCrtyQwW9DUirAbPDiIHKBWgsBea/view?usp=sharing Third Party Advisory
https://drive.google.com/file/d/1iusYdheb62dom0DnvAzEiNR-e4EXSf2k/view?usp=sharing ExploitThird Party Advisory
https://drive.google.com/file/d/1IN7p9OKRgdszMVC1TKuZQDa4ySCPmQzO/view?usp=sharing Third Party Advisory
https://drive.google.com/file/d/1RegGlCrtyQwW9DUirAbPDiIHKBWgsBea/view?usp=sharing Third Party Advisory
https://drive.google.com/file/d/1iusYdheb62dom0DnvAzEiNR-e4EXSf2k/view?usp=sharing ExploitThird 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-2021-45427), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.