CVE-2025-65925Network attack vector

Unauthenticated account creation via missing verification enforcement

Published Dec 30, 2025 · Updated Dec 30, 2025

Improper authentication in Zeroheight before 2025-06-13 allows remote attackers to create accounts through a legacy sign-up API. The legacy pathway processed new registrations without requiring a valid email-verification token or enforcing the intended verification check. The unauthenticated flow creates unverified accounts that cannot use product features, limiting impact to fake-account flooding and resource consumption; no existing-account access or data exposure was reported.

CVSS severity6.5
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in Zeroheight before 2025-06-13 allows remote attackers to create accounts through a legacy sign-up API. The legacy pathway processed new registrations without requiring a valid email-verification token or enforcing the intended verification check. The unauthenticated flow creates unverified accounts that cannot use product features, limiting impact to fake-account flooding and resource consumption; no existing-account access or data exposure was reported.

The record

CVE
CVE-2025-65925
Published
Dec 30, 2025
Updated
Dec 30, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-287, T1136.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 30, 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

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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-287Improper Authentication
T1136.003Create Account: Cloud Account

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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