CVE-2020-5834Network attack vector

File-size disclosure via directory traversal

Published May 11, 2020 · Updated Aug 4, 2024

Directory traversal in Symantec Endpoint Protection Manager before 14.3 allows remote attackers to determine file sizes. Broadcom has not published the affected endpoint, code locus, or path-validation operation that accepts traversal input. The interface is remotely reachable without authentication, and the reported consequence is limited to disclosing file-size metadata.

CVSS severity5.3
Medium
EPSS probability1.65%
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 Symantec Endpoint Protection Manager before 14.3 allows remote attackers to determine file sizes. Broadcom has not published the affected endpoint, code locus, or path-validation operation that accepts traversal input. The interface is remotely reachable without authentication, and the reported consequence is limited to disclosing file-size metadata.

The record

CVE
CVE-2020-5834
Published
May 11, 2020
Updated
Aug 4, 2024
Vendor
Symantec
Product
Symantec Endpoint Protection Manager
Classifications
CWE-22, T1083
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 11, 2020CVE 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?

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

  1. Affected versionversion=Prior to 14.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Symantec · Symantec Endpoint Protection Managerversion=Prior to 14.3

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
5.3Symantec, A Division of BroadcomCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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.

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

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1083File and Directory Discovery

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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