CVE-2021-1133Network attack vector

Authenticated file deletion via REST path traversal

Published Jan 20, 2021 · Updated Nov 12, 2024

Path traversal in Cisco Data Center Network Manager before 11.4(1) allows remote authenticated users to delete arbitrary files via its REST API. The REST API insufficiently validates user-supplied paths in crafted requests, permitting traversal outside the intended location and deletion of filesystem files. A low-privilege account and network access to the API are required; the documented consequence is arbitrary file deletion, not file reading or code execution.

CVSS severity6.5
Medium
EPSS probability1.08%
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 Cisco Data Center Network Manager before 11.4(1) allows remote authenticated users to delete arbitrary files via its REST API. The REST API insufficiently validates user-supplied paths in crafted requests, permitting traversal outside the intended location and deletion of filesystem files. A low-privilege account and network access to the API are required; the documented consequence is arbitrary file deletion, not file reading or code execution.

The record

CVE
CVE-2021-1133
Published
Jan 20, 2021
Updated
Nov 12, 2024
Vendor
ClamAV
Product
Cisco Data Center Network Manager
Classifications
CWE-20, T1070.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 20, 2021CVE publishedPublication date reported by the CVE source.
  2. Nov 12, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ClamAV · Cisco Data Center Network Managerversion=n/a

Published CVSS scores

6.5CiscoCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1070.004File Deletion

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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