CVE-2025-26847Network attack vector

Password disclosure via incomplete support-bundle masking

Published May 8, 2025 · Updated May 8, 2025

Credential disclosure in affected Znuny releases allows attackers to read unmasked passwords from generated support bundles. The Support Data Collector fails to mask every password in the system configuration export included in a bundle. Exposure requires access to a generated support bundle, and the bounded impact is disclosure of passwords contained in its exported configuration.

CVSS severity7.5
High
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Credential disclosure in affected Znuny releases allows attackers to read unmasked passwords from generated support bundles. The Support Data Collector fails to mask every password in the system configuration export included in a bundle. Exposure requires access to a generated support bundle, and the bounded impact is disclosure of passwords contained in its exported configuration.

The record

CVE
CVE-2025-26847
Published
May 8, 2025
Updated
May 8, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-521, T1552.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 8, 2025CVE publishedPublication date reported by the CVE source.
  2. May 8, 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 vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.1CISA ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
7.5NVDCVSS: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 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-521Weak Password Requirements
T1552.001Unsecured Credentials: Credentials In Files

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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