CVE-2007-0843

NONECVSS 0.0Weaponized
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 4%CVSS: —Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

The ReadDirectoryChangesW API function on Microsoft Windows 2000, XP, Server 2003, and Vista does not check permissions for child objects, which allows local users to bypass permissions by opening a directory with LIST (READ) access and using ReadDirectoryChangesW to monitor changes of files that do not have LIST permissions, which can be leveraged to determine filenames, access times, and other sensitive information.

CVSS v3
—
EG Score
0.0(none)
EPSS
88.1%
KEV
Not listed

Published

February 23, 2007

Last Modified

April 23, 2026

References (22)

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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  13. 2026-06-30 23:18 UTCEPSS rescore
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  24. 2026-06-21 01:56 UTCEPSS rescore
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  1. 2026-06-21 01:56 UTCEPSS rescore
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  4. 2026-06-18 17:49 UTCEPSS rescore
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  22. 2026-06-05 06:07 UTCEPSS rescore
  23. 2026-06-04 13:09 UTCEPSS rescore
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  25. 2026-06-02 20:10 UTCEPSS rescore
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  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 04:09 UTCEG score recompute
  32. 2026-05-31 04:09 UTCGHSA enrichment
  33. 2026-05-31 00:13 UTCEPSS rescore
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  35. 2026-05-29 13:40 UTCEPSS rescore
  36. 2026-05-28 13:42 UTCEPSS rescore
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  40. 2026-05-26 13:41 UTCEPSS rescore
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  42. 2026-05-26 07:16 UTCEPSS rescore
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  45. 2026-05-24 16:42 UTCEPSS rescore
  46. 2026-05-22 21:15 UTCEPSS rescore
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  48. 2026-05-22 21:15 UTCEPSS rescore
  49. 2026-05-21 22:38 UTCEPSS rescore
  50. 2026-05-20 22:36 UTCEPSS rescore
  51. 2026-05-20 11:20 UTCEPSS rescore
  52. 2026-05-20 11:20 UTCEPSS rescore
  53. 2026-05-18 21:29 UTCEPSS rescore
  54. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(2 references)

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

  • GitHub PoCz3APA3A/spydir
    First seen Nov 27, 2014

    Spydir is a small utility to monitor file changes in Windows directory regardless of subdirectory and files permissions (exploits CVE-2007-0843)

    Open source ↗
  • Exploit-DBEDB-29630✓ verified
    First seen Feb 22, 2007

    Microsoft Windows XP/2003 - ReadDirectoryChangesW Information Disclosure

    Open source ↗

Frequently asked(4)

What is CVE-2007-0843?
CVE-2007-0843 is a none vulnerability published on February 23, 2007. The ReadDirectoryChangesW API function on Microsoft Windows 2000, XP, Server 2003, and Vista does not check permissions for child objects, which allows local users to bypass permissions by opening a directory with LIST (READ) access and using ReadDirectoryChangesW to monitor changes of files that…
When was CVE-2007-0843 disclosed?
CVE-2007-0843 was first published in the National Vulnerability Database on February 23, 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-2007-0843 actively exploited?
CVE-2007-0843 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 88.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2007-0843?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2007-0843, 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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