CVE-2008-4576

HIGHCVSS v2 · 7.87.8—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 7.8 — v2 rates that HIGH (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:L/Au:N/C:N/I:N/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 3.7% 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
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 4%CVSS v2: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

sctp in Linux kernel before 2.6.25.18 allows remote attackers to cause a denial of service (OOPS) via an INIT-ACK that states the peer does not support AUTH, which causes the sctp_process_init function to clean up active transports and triggers the OOPS when the T1-Init timer expires.

CVSS v2.0 (legacy)
7.8HIGHNVD never assigned a CVSS v3 rating to this CVE
EG Score
7.8(low)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity78% × 45%
Exploitation4% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
4%
EPSS %ILE
89%
KEV
Not listed

Published

October 15, 2008

Last Modified

April 23, 2026

References (50)

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-2.6.15-53-k7 (2.6.15-53.74) @ dapper2026-05-30ubuntu
redhatkernel-rt-0:2.6.24.7-93.el5rt2009-01-22redhat
redhatkernel-0:2.6.18-92.1.22.el52008-12-16redhat

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.

Affected Packages

(4 across 1 ecosystem)
Debian:4.0(4)
PackageVulnerable rangeFixed inDependents
fai-kernels1.17 ... 1.17etch1 (25 versions)1.17+etch.23etch1—
linux-2.62.6.18.dfsg.1-12 ... 2.6.18.dfsg.1-23 (30 versions)2.6.18.dfsg.1-23etch1—
linux-2.6.242.6.24-5~etchnhalf.1 ... 2.6.24-6~etchnhalf.6 (7 versions)2.6.24-6~etchnhalf.7—
user-mode-linux2.6.18-1um-2 ... 2.6.18-1um-2etch4 (23 versions)2.6.18-1um-2etch.23etch1—

Weakness Classification(1)

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

All Vendor Advisories

(3)

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 0× in last 7d / 8× 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 101 total refreshes for this CVE.

  1. 2026-08-15 01:24 UTCEPSS rescore
  2. 2026-08-08 16:31 UTCEPSS rescore
  3. 2026-08-07 16:21 UTCEPSS rescore
  4. 2026-08-06 13:41 UTCEPSS rescore
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  7. 2026-08-03 10:28 UTCEPSS rescore
  8. 2026-07-30 01:25 UTCEPSS rescore
  9. 2026-07-26 13:36 UTCEG score recompute▲ 7.80
  10. 2026-07-25 14:12 UTCEPSS rescore
  11. 2026-07-24 14:12 UTCEPSS rescore
  12. 2026-07-23 14:14 UTCEPSS rescore
  13. 2026-07-23 00:57 UTCEG score recompute
  14. 2026-07-23 00:35 UTCEG score recompute
  15. 2026-07-23 00:01 UTCEG score recompute
  16. 2026-07-22 21:40 UTCEG score recompute
  17. 2026-07-20 17:03 UTCEPSS rescore
  18. 2026-07-18 09:59 UTCEPSS rescore
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  1. 2026-07-11 08:22 UTCEPSS rescore
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  5. 2026-07-06 02:19 UTCEPSS rescore
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  10. 2026-07-02 14:00 UTCEPSS rescore
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  13. 2026-06-30 23:19 UTCEPSS rescore
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  25. 2026-06-21 01:56 UTCEPSS rescore
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  27. 2026-06-18 17:49 UTCEPSS rescore
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  29. 2026-06-17 17:49 UTCEPSS rescore
  30. 2026-06-17 17:49 UTCEPSS rescore
  31. 2026-06-16 17:49 UTCEPSS rescore
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  34. 2026-06-13 22:57 UTCEPSS rescore
  35. 2026-06-12 23:08 UTCEPSS rescore
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  37. 2026-06-11 13:56 UTCEPSS rescore
  38. 2026-06-10 22:14 UTCEPSS rescore
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  40. 2026-06-08 14:13 UTCEPSS rescore
  41. 2026-06-07 15:22 UTCEPSS rescore
  42. 2026-06-06 13:44 UTCEPSS rescore
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  44. 2026-06-05 22:44 UTCEPSS rescore
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  46. 2026-06-05 06:07 UTCEPSS rescore
  47. 2026-06-04 13:09 UTCEPSS rescore
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  49. 2026-06-02 20:10 UTCEPSS rescore
  50. 2026-06-02 20:10 UTCEPSS rescore
  51. 2026-06-01 13:49 UTCEPSS rescore
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  54. 2026-05-31 22:28 UTCEPSS rescore
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  56. 2026-05-31 00:13 UTCEPSS rescore
  57. 2026-05-31 00:13 UTCEPSS rescore
  58. 2026-05-30 19:55 UTCEG score recompute
  59. 2026-05-30 19:55 UTCVendor advisory
  60. 2026-05-30 19:55 UTCGHSA enrichment
  61. 2026-05-29 13:40 UTCEPSS rescore
  62. 2026-05-28 13:42 UTCEPSS rescore
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  65. 2026-05-27 13:38 UTCEPSS rescore
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  74. 2026-05-20 11:20 UTCEPSS rescore
  75. 2026-05-20 11:20 UTCEPSS rescore

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Frequently asked(4)

What is CVE-2008-4576?
CVE-2008-4576 is a high vulnerability published on October 15, 2008. sctp in Linux kernel before 2.6.25.18 allows remote attackers to cause a denial of service (OOPS) via an INIT-ACK that states the peer does not support AUTH, which causes the sctpprocessinit function to clean up active transports and triggers the OOPS when the T1-Init timer expires.
When was CVE-2008-4576 disclosed?
CVE-2008-4576 was first published in the National Vulnerability Database on October 15, 2008, 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-2008-4576 actively exploited?
CVE-2008-4576 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4% probability of exploitation in the next 30 days, which ranks it in the top 11.2% of all scored CVEs.
How do I remediate CVE-2008-4576?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2008-4576, 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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