CVE-2020-4427

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 70%CVSS: 9.8Exploit: NoneExposed: 0

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

IBM Data Risk Manager 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5, and 2.0.6 could allow a remote attacker to bypass security restrictions when configured with SAML authentication. By sending a specially crafted HTTP request, an attacker could exploit this vulnerability to bypass the authentication process and gain full administrative access to the system. IBM X-Force ID: 180532.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
99(Act)
EG Risk 99/100SSVC: Act

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%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS
99.3%
KEV
⚠ Exploited

Published

May 7, 2020

Last Modified

November 4, 2025

Advisory Details (5)

Auto-updated Jun 1, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-4427
generic

Security Bulletin: Vulnerabilities exist in IBM Data Risk Manager (CVE-2020-4427, CVE-2020-4428, CVE-2020-4429, and CVE-2020-4430)

https://www.ibm.com/support/pages/node/6206875
generic

IBM X-Force Exchange

https://exchange.xforce.ibmcloud.com/vulnerabilities/180532
generic Patch Available

Full Disclosure: 4 vulnerabilities in ibmsecurity

http://seclists.org/fulldisclosure/2024/Nov/1
generic Patch Available

Full Disclosure: 32 vulnerabilities in IBM Security Verify Access

http://seclists.org/fulldisclosure/2024/Nov/0

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 39× in last 7d / 205× 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 395 total refreshes for this CVE.

  1. 2026-07-25 14:15 UTCEPSS rescore
  2. 2026-07-24 14:15 UTCEPSS rescore
  3. 2026-07-23 01:53 UTCEG score recompute
  4. 2026-07-22 21:52 UTCEG score recompute
  5. 2026-07-22 21:51 UTCGHSA enrichment
  6. 2026-07-22 19:40 UTCCISA KEV update
  7. 2026-07-22 17:45 UTCEG score recompute
  8. 2026-07-22 17:45 UTCGHSA enrichment
  9. 2026-07-22 14:05 UTCEPSS rescore
  10. 2026-07-22 13:38 UTCGHSA enrichment
  11. 2026-07-22 09:32 UTCGHSA enrichment
  12. 2026-07-22 05:27 UTCGHSA enrichment
  13. 2026-07-22 01:21 UTCGHSA enrichment
  14. 2026-07-21 21:14 UTCGHSA enrichment
  15. 2026-07-21 17:08 UTCEG score recompute
  16. 2026-07-21 17:08 UTCGHSA enrichment
  17. 2026-07-21 15:22 UTCEPSS rescore
  18. 2026-07-21 15:22 UTCEPSS rescore
  19. 2026-07-21 14:37 UTCCISA KEV update
  20. 2026-07-21 13:03 UTCGHSA enrichment
  21. 2026-07-21 08:57 UTCGHSA enrichment
  22. 2026-07-21 04:51 UTCGHSA enrichment
  23. 2026-07-21 00:46 UTCGHSA enrichment
  24. 2026-07-20 20:40 UTCEG score recompute
  25. 2026-07-20 20:40 UTCGHSA enrichment
Show 75 more
  1. 2026-07-20 17:04 UTCEPSS rescore
  2. 2026-07-20 17:04 UTCEPSS rescore
  3. 2026-07-20 16:33 UTCGHSA enrichment
  4. 2026-07-20 12:26 UTCGHSA enrichment
  5. 2026-07-20 08:21 UTCGHSA enrichment
  6. 2026-07-20 04:16 UTCGHSA enrichment
  7. 2026-07-20 00:10 UTCGHSA enrichment
  8. 2026-07-19 20:04 UTCGHSA enrichment
  9. 2026-07-19 15:55 UTCGHSA enrichment
  10. 2026-07-19 11:48 UTCGHSA enrichment
  11. 2026-07-19 07:42 UTCGHSA enrichment
  12. 2026-07-19 03:36 UTCGHSA enrichment
  13. 2026-07-18 23:30 UTCGHSA enrichment
  14. 2026-07-18 19:24 UTCGHSA enrichment
  15. 2026-07-18 15:19 UTCGHSA enrichment
  16. 2026-07-18 11:13 UTCGHSA enrichment
  17. 2026-07-18 07:08 UTCGHSA enrichment
  18. 2026-07-18 03:02 UTCGHSA enrichment
  19. 2026-07-17 22:57 UTCGHSA enrichment
  20. 2026-07-17 18:52 UTCGHSA enrichment
  21. 2026-07-17 14:47 UTCGHSA enrichment
  22. 2026-07-17 10:40 UTCEG score recompute
  23. 2026-07-17 10:40 UTCGHSA enrichment
  24. 2026-07-17 06:34 UTCGHSA enrichment
  25. 2026-07-17 02:28 UTCGHSA enrichment
  26. 2026-07-16 22:22 UTCGHSA enrichment
  27. 2026-07-16 18:16 UTCGHSA enrichment
  28. 2026-07-16 17:04 UTCCISA KEV update
  29. 2026-07-16 17:00 UTCEPSS rescore
  30. 2026-07-16 14:09 UTCGHSA enrichment
  31. 2026-07-16 10:03 UTCGHSA enrichment
  32. 2026-07-16 05:56 UTCGHSA enrichment
  33. 2026-07-16 01:51 UTCGHSA enrichment
  34. 2026-07-15 21:45 UTCGHSA enrichment
  35. 2026-07-15 17:39 UTCGHSA enrichment
  36. 2026-07-15 16:55 UTCEPSS rescore
  37. 2026-07-15 16:55 UTCEPSS rescore
  38. 2026-07-15 16:49 UTCCISA KEV update
  39. 2026-07-15 15:04 UTCCISA KEV update
  40. 2026-07-15 13:33 UTCGHSA enrichment
  41. 2026-07-15 09:25 UTCGHSA enrichment
  42. 2026-07-15 05:17 UTCGHSA enrichment
  43. 2026-07-15 01:12 UTCGHSA enrichment
  44. 2026-07-14 21:07 UTCGHSA enrichment
  45. 2026-07-14 18:05 UTCCISA KEV update
  46. 2026-07-14 17:02 UTCGHSA enrichment
  47. 2026-07-14 12:57 UTCGHSA enrichment
  48. 2026-07-14 08:52 UTCGHSA enrichment
  49. 2026-07-14 04:46 UTCGHSA enrichment
  50. 2026-07-14 00:41 UTCGHSA enrichment
  51. 2026-07-13 22:27 UTCEPSS rescore
  52. 2026-07-13 22:27 UTCEPSS rescore
  53. 2026-07-13 20:35 UTCGHSA enrichment
  54. 2026-07-13 17:07 UTCCISA KEV update
  55. 2026-07-13 16:30 UTCGHSA enrichment
  56. 2026-07-13 12:23 UTCGHSA enrichment
  57. 2026-07-13 08:17 UTCGHSA enrichment
  58. 2026-07-13 06:10 UTCEPSS rescore
  59. 2026-07-13 06:10 UTCEPSS rescore
  60. 2026-07-13 04:10 UTCGHSA enrichment
  61. 2026-07-13 00:04 UTCGHSA enrichment
  62. 2026-07-12 19:58 UTCGHSA enrichment
  63. 2026-07-12 15:53 UTCGHSA enrichment
  64. 2026-07-12 11:48 UTCGHSA enrichment
  65. 2026-07-12 07:42 UTCGHSA enrichment
  66. 2026-07-12 05:44 UTCEPSS rescore
  67. 2026-07-12 05:44 UTCEPSS rescore
  68. 2026-07-12 03:36 UTCGHSA enrichment
  69. 2026-07-11 23:31 UTCGHSA enrichment
  70. 2026-07-11 19:26 UTCGHSA enrichment
  71. 2026-07-11 15:21 UTCGHSA enrichment
  72. 2026-07-11 11:15 UTCGHSA enrichment
  73. 2026-07-11 08:25 UTCEPSS rescore
  74. 2026-07-11 08:25 UTCEPSS rescore
  75. 2026-07-11 07:09 UTCGHSA enrichment

Publicly available exploits

(3 references)

Working exploit code is in the public domain (2 Metasploit modules). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Metasploitexploit/linux/http/ibm_drm_rce✓ verified
    First seen Apr 21, 2020

    IBM Data Risk Manager Unauthenticated Remote Code Execution

    Open source ↗
  • Metasploitauxiliary/admin/http/ibm_drm_download✓ verified
    First seen Apr 21, 2020

    IBM Data Risk Manager Arbitrary File Download

    Open source ↗
  • Nucleihttp/cves/2020/CVE-2020-4427.yaml
    First seen Jan 1, 2020

    IBM Data Risk Manager - Authentication Bypass via SAML

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2020-4427?
CVE-2020-4427 is a critical vulnerability published on May 7, 2020. IBM Data Risk Manager 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5, and 2.0.6 could allow a remote attacker to bypass security restrictions when configured with SAML authentication. By sending a specially crafted HTTP request, an attacker could exploit this vulnerability to bypass the authentication process…
When was CVE-2020-4427 disclosed?
CVE-2020-4427 was first published in the National Vulnerability Database on May 7, 2020, with the most recent update on November 4, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-4427 actively exploited?
Yes. CISA added CVE-2020-4427 to the Known Exploited Vulnerabilities catalog on November 3, 2021, affecting IBM Data Risk Manager. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2020-4427?
CVE-2020-4427 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2020-4427?
CVE-2020-4427 affects IBM Data Risk Manager. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2020-4427?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-4427, 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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