CVE-2009-2409

MEDIUMCVSS v2 · 5.15.1—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 5.1 — 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:N/AC:H/Au:N/C:P/I:P/A:P. 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 4.5% 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
Trending — 3 sources updated this week
5.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 5%CVSS v2: 5.1Exploit: None knownExposed: 0

A fix is available — apply it.

The Network Security Services (NSS) library before 3.12.3, as used in Firefox; GnuTLS before 2.6.4 and 2.7.4; OpenSSL 0.9.8 through 0.9.8k; and other products support MD2 with X.509 certificates, which might allow remote attackers to spoof certificates by using MD2 design flaws to generate a hash collision in less than brute-force time. NOTE: the scope of this issue is currently limited because the amount of computation required is still large.

CVSS v2.0 (legacy)
5.1MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
5.1(low)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity51% × 45%
Exploitation5% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
5%
EPSS %ILE
91%
KEV
Not listed

Published

July 30, 2009

Last Modified

April 23, 2026

References (74)

Vendor Advisories for CVE-2009-2409(2)

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

Patch Availability(16)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibgnutls26 (2.4.2-6ubuntu0.1) @ jaunty2026-05-30ubuntu
ubuntulibssl0.9.8 (0.9.8g-4ubuntu3.8) @ hardy2026-05-30ubuntu
ubuntuopenjdk-6-jre (6b16-1.6.1-3ubuntu1) @ karmic2026-05-30ubuntu
ubuntulibnss3-1d (3.12.3.1-0ubuntu0.9.04.1) @ jaunty2026-05-30ubuntu
redhatopenssl-0:0.9.7a-43.17.el4_8.52010-03-25redhat
redhatgnutls-0:1.4.1-3.el5_4.82010-03-25redhat
redhatopenssl-0:0.9.8e-12.el5_4.12010-01-20redhat
redhatjava-1.5.0-sun-0:1.5.0.22-1jpp.1.el42009-12-11redhat
redhatjava-1.6.0-openjdk-1:1.6.0.0-1.7.b09.el52009-11-16redhat
redhatjava-1.5.0-sun-0:1.5.0.22-1jpp.1.el52009-11-10redhat
redhatjava-1.6.0-sun-1:1.6.0.17-1jpp.2.el52009-11-09redhat
redhatseamonkey-0:1.0.9-0.45.el32009-09-09redhat
redhatnss-0:3.12.3.99.3-1.el5_22009-08-12redhat
redhatnss-0:3.12.3.99.3-1.el4_7.62009-07-31redhat
redhatnss-0:3.12.3.99.3-1.el4_8.22009-07-30redhat
redhatnss-0:3.12.3.99.3-1.el5_3.22009-07-30redhat

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

(14)

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 13× 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.

Showing the most recent 100 of 107 total refreshes for this CVE.

  1. 2026-07-26 13:38 UTCEG score recompute▲ 5.10
  2. 2026-07-25 14:12 UTCEPSS rescore
  3. 2026-07-24 22:11 UTCOSV refresh
  4. 2026-07-24 14:12 UTCEPSS rescore
  5. 2026-07-23 14:14 UTCEPSS rescore
  6. 2026-07-23 00:59 UTCEG score recompute
  7. 2026-07-23 00:37 UTCEG score recompute
  8. 2026-07-23 00:04 UTCEG score recompute
  9. 2026-07-22 21:43 UTCEG score recompute
  10. 2026-07-22 14:03 UTCEPSS rescore
  11. 2026-07-21 15:20 UTCEPSS rescore
  12. 2026-07-20 17:03 UTCEPSS rescore
  13. 2026-07-20 17:03 UTCEPSS rescore
  14. 2026-07-18 09:59 UTCEPSS rescore
  15. 2026-07-16 16:58 UTCEPSS rescore
  16. 2026-07-15 16:54 UTCEPSS rescore
  17. 2026-07-15 16:54 UTCEPSS rescore
  18. 2026-07-15 01:55 UTCEPSS rescore
  19. 2026-07-13 22:25 UTCEPSS rescore
  20. 2026-07-13 06:07 UTCEPSS rescore
  21. 2026-07-11 08:22 UTCEPSS rescore
  22. 2026-07-11 08:22 UTCEPSS rescore
  23. 2026-07-09 19:04 UTCEPSS rescore
  24. 2026-07-08 15:10 UTCEPSS rescore
  25. 2026-07-07 17:11 UTCOSV refresh
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  1. 2026-07-06 16:23 UTCEPSS rescore
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  7. 2026-07-01 15:02 UTCEPSS rescore
  8. 2026-06-30 23:19 UTCEPSS rescore
  9. 2026-06-29 14:02 UTCEPSS rescore
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  11. 2026-06-28 04:52 UTCEPSS rescore
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  13. 2026-06-27 03:05 UTCEPSS rescore
  14. 2026-06-25 13:46 UTCEPSS rescore
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  18. 2026-06-23 21:29 UTCEPSS rescore
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  20. 2026-06-22 14:22 UTCEPSS rescore
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  22. 2026-06-21 14:53 UTCEPSS rescore
  23. 2026-06-21 01:56 UTCEPSS rescore
  24. 2026-06-21 01:56 UTCEPSS rescore
  25. 2026-06-19 19:22 UTCEPSS rescore
  26. 2026-06-19 19:22 UTCEPSS rescore
  27. 2026-06-19 04:35 UTCOSV refresh
  28. 2026-06-18 17:49 UTCEPSS rescore
  29. 2026-06-18 17:49 UTCEPSS rescore
  30. 2026-06-17 17:49 UTCEPSS rescore
  31. 2026-06-17 17:49 UTCEPSS rescore
  32. 2026-06-16 17:49 UTCEPSS rescore
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  35. 2026-06-14 23:14 UTCEPSS rescore
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  37. 2026-06-13 22:57 UTCEPSS rescore
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  40. 2026-06-10 22:14 UTCEPSS rescore
  41. 2026-06-10 13:17 UTCEPSS rescore
  42. 2026-06-08 14:13 UTCEPSS rescore
  43. 2026-06-07 15:22 UTCEPSS rescore
  44. 2026-06-07 15:22 UTCEPSS rescore
  45. 2026-06-06 13:44 UTCEPSS rescore
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  48. 2026-06-05 22:44 UTCEPSS rescore
  49. 2026-06-05 22:44 UTCEPSS rescore
  50. 2026-06-05 06:07 UTCEPSS rescore
  51. 2026-06-04 13:09 UTCEPSS rescore
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  53. 2026-06-02 20:10 UTCEPSS rescore
  54. 2026-06-02 20:10 UTCEPSS rescore
  55. 2026-06-01 13:49 UTCEPSS rescore
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  57. 2026-05-31 22:28 UTCEPSS rescore
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  59. 2026-05-31 00:13 UTCEPSS rescore
  60. 2026-05-31 00:13 UTCEPSS rescore
  61. 2026-05-30 15:59 UTCEG score recompute
  62. 2026-05-30 15:59 UTCVendor advisory
  63. 2026-05-30 15:59 UTCGHSA enrichment
  64. 2026-05-29 13:40 UTCEPSS rescore
  65. 2026-05-28 13:42 UTCEPSS rescore
  66. 2026-05-28 13:42 UTCEPSS rescore
  67. 2026-05-28 13:42 UTCEPSS rescore
  68. 2026-05-28 04:33 UTCOSV refresh
  69. 2026-05-27 13:38 UTCEPSS rescore
  70. 2026-05-27 13:38 UTCEPSS rescore
  71. 2026-05-26 13:41 UTCEPSS rescore
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  73. 2026-05-26 07:16 UTCEPSS rescore
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  75. 2026-05-24 16:43 UTCEPSS rescore

Frequently asked(4)

What is CVE-2009-2409?
CVE-2009-2409 is a medium vulnerability published on July 30, 2009. The Network Security Services (NSS) library before 3.12.3, as used in Firefox; GnuTLS before 2.6.4 and 2.7.4; OpenSSL 0.9.8 through 0.9.8k; and other products support MD2 with X.509 certificates, which might allow remote attackers to spoof certificates by using MD2 design flaws to generate a hash…
When was CVE-2009-2409 disclosed?
CVE-2009-2409 was first published in the National Vulnerability Database on July 30, 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-2009-2409 actively exploited?
CVE-2009-2409 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5% probability of exploitation in the next 30 days, which ranks it in the top 9.5% of all scored CVEs.
How do I remediate CVE-2009-2409?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-2409, 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.

Dependency Blast Radius

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