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CVE Record

CVE-2007-4507: Multiple buffer overflows in the php_ntuser component for PHP 5.2.3 allow context-dependent attackers to ca...

Multiple buffer overflows in the php_ntuser component for PHP 5.2.3 allow context-dependent attackers to cause a denial of service or execute arbitrary code via long arguments to the (1) ntuser_getuserlist, (2) ntuser_getuserinfo, (3) ntuser_getusergroups, or (4) ntuser_getdomaincontroller functions.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This CVE describes buffer overflows in the php_ntuser component used with PHP 5.2.3. If vulnerable code accepts overly long arguments, an attacker may crash the process or possibly run arbitrary code. The sources do not identify active exploitation or a vendor patch.

Executive priority

Treat as high priority if any legacy PHP 5.2.3 environment still uses php_ntuser. The business risk is service disruption or code execution, but evidence suggests exposure should be narrow and legacy-focused.

Technical view

The issue affects php_ntuser functions ntuser_getuserlist, ntuser_getuserinfo, ntuser_getusergroups, and ntuser_getdomaincontroller when given long arguments. The CVE describes denial of service or arbitrary code execution by context-dependent attackers. A public Exploit-DB reference exists, but no CVSS, CWE, or complete affected-product metadata is provided.

Likely exposure

Exposure is likely limited to systems using PHP 5.2.3 with the php_ntuser component installed and reachable through application logic that passes untrusted or oversized input into the listed functions.

Exploitation context

The bundle includes an Exploit-DB reference, so public exploit information exists. CISA KEV is false, and the provided sources do not show active exploitation in the wild.

Researcher notes

Affected metadata is incomplete in the bundle, with vendor and product listed as n/a. Analysis should focus on confirming component presence and input reachability rather than assuming broad PHP exposure.

Mitigation direction

  • Inventory PHP 5.2.3 systems and confirm whether php_ntuser is installed or enabled.
  • Check vendor or maintainer guidance for the appropriate fixed version or replacement path.
  • Disable or remove php_ntuser where it is not required.
  • Restrict untrusted input from reaching the affected php_ntuser functions.
  • Prioritize migration away from this legacy PHP component if still present.

Validation and detection

  • Search application code for calls to the four affected php_ntuser functions.
  • Review runtime configuration to confirm whether php_ntuser is loaded.
  • Identify any public or authenticated routes that can influence arguments to those functions.
  • Check historical logs for crashes around requests using affected ntuser functionality.
  • Confirm remediation by verifying the component is absent, disabled, or updated per vendor guidance.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2007-4507 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.