CVE-2021-45427Network attack vector

Unauthenticated file deletion via path traversal

Published Dec 30, 2021 · Updated Aug 4, 2024

Path traversal in Emerson XWEB 300D EVO 3.0.7--3ee403 allows remote attackers to browse and delete arbitrary files without authentication. The affected file-management path handling fails to enforce access control or confine attacker-controlled paths before browsing or deleting files. Network access to the appliance is sufficient; deletion can remove any file reachable by the vulnerable service.

CVSS severity9.8
Critical
EPSS probability19.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Emerson XWEB 300D EVO 3.0.7--3ee403 allows remote attackers to browse and delete arbitrary files without authentication. The affected file-management path handling fails to enforce access control or confine attacker-controlled paths before browsing or deleting files. Network access to the appliance is sufficient; deletion can remove any file reachable by the vulnerable service.

The record

CVE
CVE-2021-45427
Published
Dec 30, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1485
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 30, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NISTAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1485Data Destruction

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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