CVE-2025-9109Network attack vector

Account enumeration via password-recovery response differences

Published Aug 18, 2025 · Updated Aug 18, 2025

Observable response discrepancy in Portábilis i-Diário 1.0 through 1.5.0 allows remote attackers to identify registered email accounts. The unauthenticated /password/email endpoint returns distinguishable responses for submitted email addresses instead of masking whether an account exists. Exploitation requires comparing high-complexity response differences, and the reported impact is limited to account existence without data modification or service interruption.

CVSS severity3.7
Low
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Observable response discrepancy in Portábilis i-Diário 1.0 through 1.5.0 allows remote attackers to identify registered email accounts. The unauthenticated /password/email endpoint returns distinguishable responses for submitted email addresses instead of masking whether an account exists. Exploitation requires comparing high-complexity response differences, and the reported impact is limited to account existence without data modification or service interruption.

The record

CVE
CVE-2025-9109
Published
Aug 18, 2025
Updated
Aug 18, 2025
Vendor
Portábilis
Product
i-Diário
Classifications
CWE-203, CWE-204, T1087
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 18, 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=1.0
  2. Affected versionversion=1.1
  3. Affected versionversion=1.2
  4. Affected versionversion=1.3
  5. Affected versionversion=1.4
  6. Affected versionversion=1.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Portábilis · i-Diárioversion=1.0; version=1.1; version=1.2; version=1.3; version=1.4; version=1.5.0

Published CVSS scores

2.9VulDBCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
2.6VulDBAV:N/AC:H/Au:N/C:P/I:N/A:N
3.7NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-203Observable Discrepancy
CWE-204Observable Response Discrepancy
T1087Account Discovery

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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