CVE-2020-3250Public exploitNetwork attack vector

Unauthenticated file disclosure via unchecked download path

Published Apr 15, 2020 · Updated Nov 15, 2024

Directory traversal in the userAPIDownloadFile API in Cisco UCS Director allows remote attackers to read arbitrary files without authentication. The downloadFile method appends an attacker-supplied filename to the exports directory and opens the resulting path without rejecting traversal sequences. The process reads files with root privileges, so any file readable by the service is exposed; Cisco also reports possible API disruption for this CVE.

CVSS severity8.6
High
EPSS probability60.95%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Directory traversal in the userAPIDownloadFile API in Cisco UCS Director allows remote attackers to read arbitrary files without authentication. The downloadFile method appends an attacker-supplied filename to the exports directory and opens the resulting path without rejecting traversal sequences. The process reads files with root privileges, so any file readable by the service is exposed; Cisco also reports possible API disruption for this CVE.

The record

CVE
CVE-2020-3250
Published
Apr 15, 2020
Updated
Nov 15, 2024
Vendor
ClamAV
Product
Cisco UCS Director
Classifications
CWE-269, CWE-20, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Nov 15, 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 privilegesunauthenticated

What is affected?

ClamAV · Cisco UCS Directorversion=n/a

Published CVSS scores

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
8.6Cisco Systems, Inc.CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
7.5Zero Day InitiativeCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
9.8NIST NVDCVSS: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 exploitPublished

Weakness, pattern, technique

CWE-269Improper Privilege Management
CWE-20Improper Input Validation
T1190Exploit Public-Facing Application

Public exploit references

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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