CVE-2025-44647Network attack vector

Offline PSK cracking via enabled IKE aggressive mode

Published Jul 21, 2025 · Updated Jul 5, 2026

Insecure IKE configuration in TRENDnet TEW-WLC100P 2.03b03 allows remote attackers to obtain a PSK hash for offline cracking. The bundled strongSwan configuration enables i_dont_care_about_security_and_use_aggressive_mode_psk, causing the responder to transmit a PSK-derived hash during IKEv1 negotiation. Network access to the IKE responder is sufficient; successful offline cracking compromises the pre-shared key rather than revealing it directly.

CVSS severity7.3
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insecure IKE configuration in TRENDnet TEW-WLC100P 2.03b03 allows remote attackers to obtain a PSK hash for offline cracking. The bundled strongSwan configuration enables i_dont_care_about_security_and_use_aggressive_mode_psk, causing the responder to transmit a PSK-derived hash during IKEv1 negotiation. Network access to the IKE responder is sufficient; successful offline cracking compromises the pre-shared key rather than revealing it directly.

The record

CVE
CVE-2025-44647
Published
Jul 21, 2025
Updated
Jul 5, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-1188, T1110.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 5, 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

7.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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-1188Insecure Default Initialization of Resource
T1110.002Password Cracking

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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