CVE-2023-20171Network attack vector

Arbitrary file deletion via crafted HTTP requests

Published May 18, 2023 · Updated Oct 25, 2024

Arbitrary file deletion in Cisco Identity Services Engine 3.1 and 3.2 allows remote authenticated users to delete restricted files. The web-based management interface insufficiently validates certain character sequences in a crafted HTTP request before selecting a file for deletion. Valid authorized access is required, and successful exploitation deletes files beyond the user's configured administrative level.

CVSS severity6.5
Medium
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file deletion in Cisco Identity Services Engine 3.1 and 3.2 allows remote authenticated users to delete restricted files. The web-based management interface insufficiently validates certain character sequences in a crafted HTTP request before selecting a file for deletion. Valid authorized access is required, and successful exploitation deletes files beyond the user's configured administrative level.

The record

CVE
CVE-2023-20171
Published
May 18, 2023
Updated
Oct 25, 2024
Vendor
ClamAV
Product
Cisco Identity Services Engine
Classifications
CWE-602, T1070.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 18, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 25, 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 Identity Services Engineversion=n/a

Published CVSS scores

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

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

Weakness, pattern, technique

CWE-602Client-Side Enforcement of Server-Side Security
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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