CVE-2026-36848Public exploitNetwork attack vector

Unauthenticated file disclosure via H-VUE path traversal

Published Jun 29, 2026 · Updated Jun 29, 2026

Path traversal in Gigamon GVOS 5.16.1 and earlier allows remote attackers to read arbitrary files through the H-VUE service. The DownloadDbFile handler passes an unfiltered URI path to download_file, which concatenates it with DBFILE_DIR before opening the resulting path. Network access to the unauthenticated persistd service on port 8089 is required, and the published CVSS assessment limits impact to file confidentiality.

CVSS severity7.5
High
EPSS probability0.93%
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 Gigamon GVOS 5.16.1 and earlier allows remote attackers to read arbitrary files through the H-VUE service. The DownloadDbFile handler passes an unfiltered URI path to download_file, which concatenates it with DBFILE_DIR before opening the resulting path. Network access to the unauthenticated persistd service on port 8089 is required, and the published CVSS assessment limits impact to file confidentiality.

The record

CVE
CVE-2026-36848
Published
Jun 29, 2026
Updated
Jun 29, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 29, 2026Record 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

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

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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