CVE-2026-75105Public exploitNetwork attack vector

Cross-subnet disclosure via unchecked address lookup

Published Aug 17, 2026 · Updated Aug 20, 2026

Information disclosure in phpIPAM before 1.8.2 allows remote attackers to read IP address records via a temporary share URL and a crafted subnetId. In app/temp_share/index.php, subnet shares pass any supplied subnetId to address.php, which calls fetch_address on that raw key and does not verify that the returned record belongs to the subnet authorized by the share token. Any valid, unexpired share link is enough to enumerate records across all sections and subnets, exposing hostnames, DNS names, MAC addresses, owner and contact fields, notes, and custom fields.

CVSS severity8.7
High
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in phpIPAM before 1.8.2 allows remote attackers to read IP address records via a temporary share URL and a crafted subnetId. In app/temp_share/index.php, subnet shares pass any supplied subnetId to address.php, which calls fetch_address on that raw key and does not verify that the returned record belongs to the subnet authorized by the share token. Any valid, unexpired share link is enough to enumerate records across all sections and subnets, exposing hostnames, DNS names, MAC addresses, owner and contact fields, notes, and custom fields.

The record

CVE
CVE-2026-75105
Published
Aug 17, 2026
Updated
Aug 20, 2026
Vendor
phpIPAM
Product
phpIPAM
Classifications
CWE-639, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 20, 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?

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

  1. Affected versionversion=0 <1.8.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

phpIPAM · phpIPAMversion=0 <1.8.2

Published CVSS scores

7.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
8.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA: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 exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1190Exploit Public-Facing Application

Public exploit references

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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