Security readout for executives and security teams
This is a legacy PEAR installer issue where a malicious package could run code if a user executes the pear command or loads the Web/Gtk frontend. Business risk depends on whether old PHP/PEAR tooling remains on build, admin, or server systems and whether users handle untrusted packages. Likely exposure is legacy PHP environments retaining PEAR installer 1.4.2 or earlier, especially developer, build, hosting, or server administration systems where PEAR packages are installed or frontends are loaded. Address during legacy PHP risk reduction unless PEAR is used on privileged production or build systems, where remediation should be prioritized sooner because arbitrary code execution is possible after user interaction. Mitigation focus: Inventory systems for PEAR installer 1.4.2 and earlier.; Review the PEAR advisory for the vendor-supported remediation path.; Restrict PEAR package use to trusted sources only..
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
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
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-2005-4154 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
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
- pear-installer-code-execution(23021)CVE reference · vdb-entry, x_refsource_XF
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.