CVE-2009-3556

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

A fix is available — apply it.

A certain Red Hat configuration step for the qla2xxx driver in the Linux kernel 2.6.18 on Red Hat Enterprise Linux (RHEL) 5, when N_Port ID Virtualization (NPIV) hardware is used, sets world-writable permissions for the (1) vport_create and (2) vport_delete files under /sys/class/scsi_host/, which allows local users to make arbitrary changes to SCSI host attributes by modifying these files.

CVSS v3
—
EG Score
0.0(none)
EG Risk
0
EG Risk 0/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses intrinsic severity with real-world exploitation and automatability, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. It is distinct from the 0–10 EG Score, which measures severity.

EPSS
30.8%
KEV
Not listed

Published

January 27, 2010

Last Modified

April 29, 2026

References (18)

Vendor Advisories for CVE-2009-3556(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatkernel-0:2.6.18-164.11.1.el52010-01-19redhat

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.

Data Freshness Timeline

(refreshed 10× in last 7d / 37× 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. 2026-07-23 01:00 UTCEG score recompute
  2. 2026-07-23 00:37 UTCEG score recompute
  3. 2026-07-23 00:04 UTCEG score recompute
  4. 2026-07-22 21:43 UTCEG score recompute
  5. 2026-07-22 14:03 UTCEPSS rescore
  6. 2026-07-21 15:20 UTCEPSS rescore
  7. 2026-07-20 17:03 UTCEPSS rescore
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  9. 2026-07-18 09:59 UTCEPSS rescore
  10. 2026-07-16 16:58 UTCEPSS rescore
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  1. 2026-06-29 14:02 UTCEPSS rescore
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  3. 2026-06-28 14:03 UTCEPSS rescore
  4. 2026-06-28 04:52 UTCEPSS rescore
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  6. 2026-06-27 03:05 UTCEPSS rescore
  7. 2026-06-25 13:46 UTCEPSS rescore
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  16. 2026-06-21 01:56 UTCEPSS rescore
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  18. 2026-06-19 19:22 UTCEPSS rescore
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  20. 2026-06-18 17:49 UTCEPSS rescore
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  26. 2026-06-15 17:44 UTCEPSS rescore
  27. 2026-06-14 23:14 UTCEPSS rescore
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  29. 2026-06-13 22:57 UTCEPSS rescore
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  45. 2026-06-02 20:10 UTCEPSS rescore
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  47. 2026-06-01 13:49 UTCEPSS rescore
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  49. 2026-05-31 22:28 UTCEPSS rescore
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  51. 2026-05-31 00:13 UTCEPSS rescore
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  53. 2026-05-29 13:40 UTCEPSS rescore
  54. 2026-05-29 12:57 UTCEG score recompute
  55. 2026-05-29 12:57 UTCVendor advisory
  56. 2026-05-29 12:57 UTCGHSA enrichment
  57. 2026-05-28 13:42 UTCEPSS rescore
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  60. 2026-05-27 13:38 UTCEPSS rescore
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  69. 2026-05-20 22:37 UTCEPSS rescore
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  71. 2026-05-20 11:21 UTCEPSS rescore
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  73. 2026-05-18 21:29 UTCEPSS rescore

Frequently asked(4)

What is CVE-2009-3556?
CVE-2009-3556 is a none vulnerability published on January 27, 2010. A certain Red Hat configuration step for the qla2xxx driver in the Linux kernel 2.6.18 on Red Hat Enterprise Linux (RHEL) 5, when NPort ID Virtualization (NPIV) hardware is used, sets world-writable permissions for the (1) vportcreate and (2) vportdelete files under /sys/class/scsihost/, which…
When was CVE-2009-3556 disclosed?
CVE-2009-3556 was first published in the National Vulnerability Database on January 27, 2010, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2009-3556 actively exploited?
CVE-2009-3556 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 30.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2009-3556?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-3556, 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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