CVE-2009-2848

MEDIUMCVSS v2 · 5.95.9—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 5.9 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:L/AC:M/Au:N/C:P/I:P/A:C. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 0.5% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Sources: epss, nvd_v2
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS v2: 5.9Exploit: None knownExposed: 0

A fix is available — apply it.

The execve function in the Linux kernel, possibly 2.6.30-rc6 and earlier, does not properly clear the current->clear_child_tid pointer, which allows local users to cause a denial of service (memory corruption) or possibly gain privileges via a clone system call with CLONE_CHILD_SETTID or CLONE_CHILD_CLEARTID enabled, which is not properly handled during thread creation and exit.

CVSS v2.0 (legacy)
5.9MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
5.9(low)
EG Risk
31(Track)
EG Risk 31/100SSVC: Track

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. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity59% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
41%
KEV
Not listed

Published

August 18, 2009

Last Modified

April 23, 2026

References (52)

Vendor Advisories for CVE-2009-2848(2)

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

Patch Availability(6)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-2.6.28-16-imx51 (2.6.28-16.55) @ jaunty2026-05-30ubuntu
redhatkernel-0:2.4.21-63.EL2009-11-03redhat
redhatkernel-0:2.6.18-128.8.1.el52009-09-29redhat
redhatkernel-0:2.6.9-89.0.11.EL2009-09-15redhat
redhatkernel-0:2.6.18-164.el52009-09-02redhat
redhatkernel-rt-0:2.6.24.7-132.el5rt2009-09-01redhat

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

(4)

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 12× 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.

Showing the most recent 100 of 104 total refreshes for this CVE.

  1. 2026-07-26 13:38 UTCEG score recompute▲ 5.90
  2. 2026-07-25 14:12 UTCEPSS rescore
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  5. 2026-07-23 00:59 UTCEG score recompute
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  60. 2026-05-30 15:46 UTCVendor advisory
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Frequently asked(4)

What is CVE-2009-2848?
CVE-2009-2848 is a medium vulnerability published on August 18, 2009. The execve function in the Linux kernel, possibly 2.6.30-rc6 and earlier, does not properly clear the current->clearchildtid pointer, which allows local users to cause a denial of service (memory corruption) or possibly gain privileges via a clone system call with CLONECHILDSETTID or…
When was CVE-2009-2848 disclosed?
CVE-2009-2848 was first published in the National Vulnerability Database on August 18, 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-2009-2848 actively exploited?
CVE-2009-2848 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 59.1% of all scored CVEs.
How do I remediate CVE-2009-2848?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-2848, 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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