CVE-2025-27677Public exploit

Protected-file disclosure via symlinked client requests

Published Mar 5, 2025 · Updated Nov 3, 2025

Improper link handling in Vasion Print before Virtual Appliance Host 22.0.843 and Application 20.0.1923 allows local users to read files. PrinterInstallerClientService follows a symbolic link placed in /opt/PrinterInstallerClient/tmp/requests while running as root, then writes the target file's first line to a user-readable log. A local account able to create request entries can disclose the first line of any file, including data otherwise restricted to root.

CVSS severity9.8
Critical
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper link handling in Vasion Print before Virtual Appliance Host 22.0.843 and Application 20.0.1923 allows local users to read files. PrinterInstallerClientService follows a symbolic link placed in /opt/PrinterInstallerClient/tmp/requests while running as root, then writes the target file's first line to a user-readable log. A local account able to create request entries can disclose the first line of any file, including data otherwise restricted to root.

The record

CVE
CVE-2025-27677
Published
Mar 5, 2025
Updated
Nov 3, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-276, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 5, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 2025Record 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 vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS: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.

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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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
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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