CVE-2020-4448

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 12.2%, top 4% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 12%CVSS: 9.8Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

IBM WebSphere Application Server Network Deployment 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to execute arbitrary code on the system with a specially-crafted sequence of serialized objects from untrusted sources. IBM X-Force ID: 181228.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
65(Track*)
EG Risk 65/100SSVC: 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
Severity98% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
12%
EPSS %ILE
96%
KEV
Not listed

Published

June 5, 2020

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated Sep 19, 2026
No patch confirmed yet.
generic

ZDI-20-688 - TrendAI™ Zero Day Initiative™ (ZDI)

https://www.zerodayinitiative.com/advisories/ZDI-20-688/
generic

Security Bulletin: Remote code execution vulnerability in WebSphere Application Server ND (CVE-2020-4448)

https://www.ibm.com/support/pages/node/6220336
generic

IBM X-Force Exchange

https://exchange.xforce.ibmcloud.com/vulnerabilities/181228

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 22× 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 141 total refreshes for this CVE.

  1. 2026-09-19 15:37 UTCEPSS rescore
  2. 2026-09-18 19:23 UTCEPSS rescore
  3. 2026-09-17 19:22 UTCEPSS rescore
  4. 2026-09-16 14:04 UTCEPSS rescore
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  16. 2026-09-01 03:32 UTCEPSS rescore
  17. 2026-08-30 19:14 UTCEPSS rescore
  18. 2026-08-30 01:19 UTCEPSS rescore
  19. 2026-08-28 21:37 UTCEPSS rescore
  20. 2026-08-27 14:21 UTCEPSS rescore
  21. 2026-08-26 14:42 UTCEPSS rescore
  22. 2026-08-21 23:45 UTCEPSS rescore
  23. 2026-08-19 17:00 UTCEPSS rescore
  24. 2026-08-18 13:44 UTCEPSS rescore
  25. 2026-08-17 13:43 UTCEPSS rescore
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  1. 2026-08-17 13:43 UTCEPSS rescore
  2. 2026-08-16 14:52 UTCEPSS rescore
  3. 2026-08-16 02:11 UTCEPSS rescore
  4. 2026-08-15 01:27 UTCEPSS rescore
  5. 2026-08-13 21:57 UTCEPSS rescore
  6. 2026-08-12 13:47 UTCEPSS rescore
  7. 2026-08-09 13:43 UTCEPSS rescore
  8. 2026-08-08 16:33 UTCEPSS rescore
  9. 2026-08-07 16:23 UTCEPSS rescore
  10. 2026-08-06 13:43 UTCEPSS rescore
  11. 2026-08-05 19:14 UTCEPSS rescore
  12. 2026-08-04 15:06 UTCEPSS rescore
  13. 2026-08-04 10:34 UTCEPSS rescore
  14. 2026-08-02 02:24 UTCEPSS rescore
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  16. 2026-07-30 16:25 UTCEPSS rescore
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  18. 2026-07-28 15:33 UTCEPSS rescore
  19. 2026-07-26 14:52 UTCEPSS rescore
  20. 2026-07-25 14:15 UTCEPSS rescore
  21. 2026-07-24 14:15 UTCEPSS rescore
  22. 2026-07-23 14:15 UTCEPSS rescore
  23. 2026-07-23 01:53 UTCEG score recompute
  24. 2026-07-22 22:40 UTCEG score recompute
  25. 2026-07-22 14:05 UTCEPSS rescore
  26. 2026-07-21 15:22 UTCEPSS rescore
  27. 2026-07-21 15:22 UTCEPSS rescore
  28. 2026-07-20 17:04 UTCEPSS rescore
  29. 2026-07-20 17:04 UTCEPSS rescore
  30. 2026-07-19 14:28 UTCEPSS rescore
  31. 2026-07-19 14:28 UTCEPSS rescore
  32. 2026-07-19 02:26 UTCEPSS rescore
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  34. 2026-07-18 10:02 UTCEPSS rescore
  35. 2026-07-16 17:00 UTCEPSS rescore
  36. 2026-07-15 16:55 UTCEPSS rescore
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  38. 2026-07-15 01:57 UTCEPSS rescore
  39. 2026-07-13 22:27 UTCEPSS rescore
  40. 2026-07-13 22:27 UTCEPSS rescore
  41. 2026-07-13 06:10 UTCEPSS rescore
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  43. 2026-07-12 05:44 UTCEPSS rescore
  44. 2026-07-12 05:44 UTCEPSS rescore
  45. 2026-07-11 08:25 UTCEPSS rescore
  46. 2026-07-11 08:25 UTCEPSS rescore
  47. 2026-07-09 19:07 UTCEPSS rescore
  48. 2026-07-07 13:43 UTCEPSS rescore
  49. 2026-07-06 16:25 UTCEPSS rescore
  50. 2026-07-06 02:21 UTCEPSS rescore
  51. 2026-07-06 02:21 UTCEPSS rescore
  52. 2026-07-05 02:28 UTCEPSS rescore
  53. 2026-07-05 02:28 UTCEPSS rescore
  54. 2026-07-02 16:57 UTCEPSS rescore
  55. 2026-07-01 15:03 UTCEPSS rescore
  56. 2026-06-30 23:20 UTCEPSS rescore
  57. 2026-06-30 23:20 UTCEPSS rescore
  58. 2026-06-28 14:05 UTCEPSS rescore
  59. 2026-06-28 04:54 UTCEPSS rescore
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  61. 2026-06-27 03:06 UTCEPSS rescore
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  63. 2026-06-25 13:48 UTCEPSS rescore
  64. 2026-06-25 13:48 UTCEPSS rescore
  65. 2026-06-24 14:03 UTCEPSS rescore
  66. 2026-06-24 14:03 UTCEPSS rescore
  67. 2026-06-23 21:31 UTCEPSS rescore
  68. 2026-06-23 21:31 UTCEPSS rescore
  69. 2026-06-22 14:23 UTCEPSS rescore
  70. 2026-06-21 01:57 UTCEPSS rescore
  71. 2026-06-21 01:57 UTCEPSS rescore
  72. 2026-06-18 17:51 UTCEPSS rescore
  73. 2026-06-18 17:50 UTCEPSS rescore
  74. 2026-06-17 17:50 UTCEPSS rescore
  75. 2026-06-16 17:50 UTCEPSS rescore

Frequently asked(5)

What is CVE-2020-4448?
CVE-2020-4448 is a critical vulnerability published on June 5, 2020. IBM WebSphere Application Server Network Deployment 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to execute arbitrary code on the system with a specially-crafted sequence of serialized objects from untrusted sources. IBM X-Force ID: 181228.
When was CVE-2020-4448 disclosed?
CVE-2020-4448 was first published in the National Vulnerability Database on June 5, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-4448 actively exploited?
CVE-2020-4448 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 12% probability of exploitation in the next 30 days, which ranks it in the top 4.0% of all scored CVEs.
What is the CVSS score of CVE-2020-4448?
CVE-2020-4448 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2020-4448?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-4448, 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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