CVE-2009-3612

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.

The tcf_fill_node function in net/sched/cls_api.c in the netlink subsystem in the Linux kernel 2.6.x before 2.6.32-rc5, and 2.4.37.6 and earlier, does not initialize a certain tcm__pad2 structure member, which might allow local users to obtain sensitive information from kernel memory via unspecified vectors. NOTE: this issue exists because of an incomplete fix for CVE-2005-4881.

CVSS v3
—
EG Score
0.0(none)
EG Risk
0
EPSS
32.4%
KEV
Not listed

Published

October 19, 2009

Last Modified

April 23, 2026

References (48)

Vendor Advisories for CVE-2009-3612(2)

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

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-2.6.27-16-generic (2.6.27-16.44) @ intrepid2026-05-30ubuntu
redhatkernel-0:2.6.18-164.9.1.el52009-12-15redhat
redhatkernel-rt-0:2.6.24.7-137.el5rt2009-11-03redhat
redhatkernel-0:2.6.9-89.0.15.EL2009-10-22redhat

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.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(2)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 9× in last 7d / 38× 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 00:37 UTCEG score recompute
  2. 2026-07-23 00:04 UTCEG score recompute
  3. 2026-07-22 21:43 UTCEG score recompute
  4. 2026-07-22 14:03 UTCEPSS rescore
  5. 2026-07-21 15:20 UTCEPSS rescore
  6. 2026-07-20 17:03 UTCEPSS rescore
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  1. 2026-06-30 23:19 UTCEPSS rescore
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  50. 2026-05-31 22:28 UTCEPSS rescore
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  52. 2026-05-31 00:13 UTCEPSS rescore
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  54. 2026-05-30 14:53 UTCEG score recompute
  55. 2026-05-30 14:53 UTCVendor advisory
  56. 2026-05-30 14:53 UTCGHSA enrichment
  57. 2026-05-29 13:40 UTCEPSS rescore
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  74. 2026-05-18 21:29 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(4)

What is CVE-2009-3612?
CVE-2009-3612 is a none vulnerability published on October 19, 2009. The tcffillnode function in net/sched/clsapi.c in the netlink subsystem in the Linux kernel 2.6.x before 2.6.32-rc5, and 2.4.37.6 and earlier, does not initialize a certain tcm_pad2 structure member, which might allow local users to obtain sensitive information from kernel memory via unspecified…
When was CVE-2009-3612 disclosed?
CVE-2009-3612 was first published in the National Vulnerability Database on October 19, 2009, 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-2009-3612 actively exploited?
CVE-2009-3612 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 32.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2009-3612?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-3612, 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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