CVE-2007-1484

NONECVSS 0.0Weaponized
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 1%CVSS: —Exploit: NoneExposed: 0

A fix is available — apply it.

The array_user_key_compare function in PHP 4.4.6 and earlier, and 5.x up to 5.2.1, makes erroneous calls to zval_dtor, which triggers memory corruption and allows local users to bypass safe_mode and execute arbitrary code via a certain unset operation after array_user_key_compare has been called.

CVSS v3
—
EG Score
0.0(none)
EPSS
62.0%
KEV
Not listed

Published

March 16, 2007

Last Modified

April 23, 2026

References (32)

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuphp5-sqlite (5.2.1-0ubuntu1.1) @ feisty2026-05-31ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 4× in last 7d / 36× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-13 22:25 UTCEPSS rescore
  2. 2026-07-13 06:07 UTCEPSS rescore
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  4. 2026-07-08 15:09 UTCEPSS rescore
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  10. 2026-07-02 14:00 UTCEPSS rescore
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  13. 2026-06-30 23:18 UTCEPSS rescore
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  22. 2026-06-23 21:29 UTCEPSS rescore
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  24. 2026-06-21 01:56 UTCEPSS rescore
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Show 53 more
  1. 2026-06-21 01:56 UTCEPSS rescore
  2. 2026-06-19 19:22 UTCEPSS rescore
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  4. 2026-06-18 17:49 UTCEPSS rescore
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  6. 2026-06-17 17:49 UTCEPSS rescore
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  8. 2026-06-16 17:49 UTCEPSS rescore
  9. 2026-06-16 17:49 UTCEPSS rescore
  10. 2026-06-15 17:44 UTCEPSS rescore
  11. 2026-06-14 23:13 UTCEPSS rescore
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  18. 2026-06-06 13:44 UTCEPSS rescore
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  20. 2026-06-05 22:44 UTCEPSS rescore
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  22. 2026-06-05 06:07 UTCEPSS rescore
  23. 2026-06-04 13:09 UTCEPSS rescore
  24. 2026-06-04 13:09 UTCEPSS rescore
  25. 2026-06-02 20:10 UTCEPSS rescore
  26. 2026-06-02 20:10 UTCEPSS rescore
  27. 2026-06-01 13:49 UTCEPSS rescore
  28. 2026-06-01 13:49 UTCEPSS rescore
  29. 2026-05-31 22:28 UTCEPSS rescore
  30. 2026-05-31 22:28 UTCEPSS rescore
  31. 2026-05-31 03:44 UTCEG score recompute
  32. 2026-05-31 03:44 UTCVendor advisory
  33. 2026-05-31 03:44 UTCGHSA enrichment
  34. 2026-05-31 00:13 UTCEPSS rescore
  35. 2026-05-31 00:13 UTCEPSS rescore
  36. 2026-05-29 13:40 UTCEPSS rescore
  37. 2026-05-28 13:42 UTCEPSS rescore
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  39. 2026-05-27 13:37 UTCEPSS rescore
  40. 2026-05-27 13:37 UTCEPSS rescore
  41. 2026-05-26 07:16 UTCEPSS rescore
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  43. 2026-05-26 07:16 UTCEPSS rescore
  44. 2026-05-24 16:42 UTCEPSS rescore
  45. 2026-05-22 21:15 UTCEPSS rescore
  46. 2026-05-22 21:15 UTCEPSS rescore
  47. 2026-05-22 21:15 UTCEPSS rescore
  48. 2026-05-21 22:38 UTCEPSS rescore
  49. 2026-05-20 22:36 UTCEPSS rescore
  50. 2026-05-20 11:20 UTCEPSS rescore
  51. 2026-05-20 11:20 UTCEPSS rescore
  52. 2026-05-18 21:29 UTCEPSS rescore
  53. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-3499✓ verified
    First seen Mar 16, 2007

    PHP 4.4.6/5.2.1 - 'array_user_key_compare()' ZVAL dtor Local Overflow

    Open source ↗

Frequently asked(4)

What is CVE-2007-1484?
CVE-2007-1484 is a none vulnerability published on March 16, 2007. The arrayuserkeycompare function in PHP 4.4.6 and earlier, and 5.x up to 5.2.1, makes erroneous calls to zvaldtor, which triggers memory corruption and allows local users to bypass safemode and execute arbitrary code via a certain unset operation after arrayuserkeycompare has been called.
When was CVE-2007-1484 disclosed?
CVE-2007-1484 was first published in the National Vulnerability Database on March 16, 2007, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2007-1484 actively exploited?
CVE-2007-1484 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 62.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2007-1484?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2007-1484, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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