CVE-2021-45427

Name: CVE-2021-45427
Creator: NVD / NIST
Published: 2021-12-30T12:15:07.563+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 19.04%

Last modified Jun 17, 2026

CVE-2021-45427 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 19.04% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

19.04%

97.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions	Update
Emerson	Xweb300d Evo Firmware	3.0.7	3ee403

References

https://drive.google.com/file/d/1IN7p9OKRgdszMVC1TKuZQDa4ySCPmQzO/view?usp=sharingThird Party Advisory
https://drive.google.com/file/d/1RegGlCrtyQwW9DUirAbPDiIHKBWgsBea/view?usp=sharingThird Party Advisory
https://drive.google.com/file/d/1iusYdheb62dom0DnvAzEiNR-e4EXSf2k/view?usp=sharingExploit, Third Party Advisory
https://drive.google.com/file/d/1IN7p9OKRgdszMVC1TKuZQDa4ySCPmQzO/view?usp=sharingThird Party Advisory
https://drive.google.com/file/d/1RegGlCrtyQwW9DUirAbPDiIHKBWgsBea/view?usp=sharingThird Party Advisory
https://drive.google.com/file/d/1iusYdheb62dom0DnvAzEiNR-e4EXSf2k/view?usp=sharingExploit, Third Party Advisory

Timeline

Published: Dec 30, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-45427?

How severe is CVE-2021-45427?

CVE-2021-45427 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 19.04% probability of exploitation in the next 30 days.

How do I fix CVE-2021-45427?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-45427?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST