CVE-2025-6737Network attack vector

Cross-tenant gateway access via shared SSH credentials

Published Aug 25, 2025 · Updated Aug 25, 2025

Weak credentials in Securden Unified PAM 9.0.x before 11.3.1 allow remote attackers to access the gateway server with low privileges. The Vendor Access Portal creates reverse SSH tunnels with the same host, username, and private key across separate installations. Capturing the transient tunnel-user-key.pem from one deployment grants low-privilege access to shared gateway infrastructure serving other tenants.

CVSS severity7.2
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak credentials in Securden Unified PAM 9.0.x before 11.3.1 allow remote attackers to access the gateway server with low privileges. The Vendor Access Portal creates reverse SSH tunnels with the same host, username, and private key across separate installations. Capturing the transient tunnel-user-key.pem from one deployment grants low-privilege access to shared gateway infrastructure serving other tenants.

The record

CVE
CVE-2025-6737
Published
Aug 25, 2025
Updated
Aug 25, 2025
Vendor
Securden
Product
Unified PAM
Classifications
CWE-1391, T1552.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 25, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 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?

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

  1. Affected versionversion=9.0.* <11.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Securden · Unified PAMversion=9.0.* <11.3.1

Published CVSS scores

7.2Rapid7CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-1391Use of Weak Credentials
T1552.004Unsecured Credentials: Private Keys

Public exploit references

No public exploit references are available in this record.

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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