Security readout for executives and security teams
This is an old PHP memory-allocation flaw affecting PHP before 4.3.2. A remote attacker could trigger excessive memory use and denial of service, with the record also noting possible arbitrary code execution. Business urgency depends on whether any legacy PHP 4.x systems remain online. Exposure is most likely in legacy internet-facing or internally reachable applications still running PHP before 4.3.2, especially where affected socket functions can process attacker-controlled values. Modern supported PHP branches are not identified as affected in the provided sources. Prioritize this if legacy PHP remains in production. The vulnerability is over two decades old, but unsupported runtimes create disproportionate risk because fixes, monitoring, and vendor assurance are weak. If no PHP before 4.3.2 exists, urgency is low after documentation. Mitigation focus: Inventory PHP runtimes and remove any PHP version earlier than 4.3.2.; Upgrade legacy PHP to a supported version, or at minimum PHP 4.3.2 or later.; Check operating system vendor advisories for the exact fixed package version..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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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.
Open ATT&CK lookupCVE-2003-0166 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.