CVE-2021-2109

HIGHNVD 7.28.5▲
EchelonGraph scoreHIGH confidence

Score elevated to 8.5 because EPSS predicts 70% probability of exploitation within the next 30 days (99th percentile of EPSS-scored CVEs). NVD baseline CVSS 7.2 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, nvd
Elevated
8.5EG
EchelonGraph verdictMitigate this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 70%
CISA-KEV: Not listedEPSS PROB: 70%CVSS: 7.2Exploit: Elevated riskExposed services: Not assessed

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

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Console). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 7.2 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

CVSS v3
7.2
EG Score
8.5HIGHhigh confidence
EG Risk
66
EG Risk 66/100CISA SSVC

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
Severity85% × 45%
Exploitation70% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
70%
EPSS %ILE
99th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

January 20, 2021

Last Modified

November 21, 2024

References (4)

Data Freshness Timeline

(refreshed 5× in last 7d / 20× 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 106 total refreshes for this CVE.

  1. 2026-10-06 15:14 UTCEPSS rescore
  2. 2026-10-03 14:22 UTCEPSS rescore
  3. 2026-10-03 14:22 UTCEPSS rescore
  4. 2026-10-02 16:22 UTCEPSS rescore
  5. 2026-09-30 15:29 UTCEG score recompute
  6. 2026-09-28 13:47 UTCEPSS rescore
  7. 2026-09-26 15:54 UTCEPSS rescore
  8. 2026-09-26 15:54 UTCEPSS rescore
  9. 2026-09-24 14:00 UTCEPSS rescore
  10. 2026-09-23 13:44 UTCEPSS rescore
  11. 2026-09-21 20:28 UTCEPSS rescore
  12. 2026-09-18 19:23 UTCEPSS rescore
  13. 2026-09-17 19:23 UTCEPSS rescore
  14. 2026-09-17 19:23 UTCEPSS rescore
  15. 2026-09-16 14:05 UTCEPSS rescore
  16. 2026-09-15 03:06 UTCEPSS rescore
  17. 2026-09-15 03:06 UTCEPSS rescore
  18. 2026-09-12 14:57 UTCEPSS rescore
  19. 2026-09-11 09:33 UTCEPSS rescore
  20. 2026-09-08 21:56 UTCEPSS rescore
  21. 2026-09-06 13:44 UTCEPSS rescore
  22. 2026-09-05 15:25 UTCEPSS rescore
  23. 2026-09-04 13:57 UTCEPSS rescore
  24. 2026-09-04 05:03 UTCEPSS rescore
  25. 2026-09-04 05:03 UTCEPSS rescore
Show 75 more
  1. 2026-09-02 14:08 UTCEPSS rescore
  2. 2026-08-30 19:14 UTCEPSS rescore
  3. 2026-08-30 01:19 UTCEPSS rescore
  4. 2026-08-28 21:37 UTCEPSS rescore
  5. 2026-08-27 14:22 UTCEPSS rescore
  6. 2026-08-26 14:42 UTCEPSS rescore
  7. 2026-08-24 14:12 UTCEPSS rescore
  8. 2026-08-21 23:46 UTCEPSS rescore
  9. 2026-08-20 22:52 UTCEPSS rescore
  10. 2026-08-19 17:01 UTCEPSS rescore
  11. 2026-08-17 13:44 UTCEPSS rescore
  12. 2026-08-16 02:11 UTCEPSS rescore
  13. 2026-08-16 02:11 UTCEPSS rescore
  14. 2026-08-15 01:27 UTCEPSS rescore
  15. 2026-08-13 21:57 UTCEPSS rescore
  16. 2026-08-12 13:47 UTCEPSS rescore
  17. 2026-08-11 13:38 UTCEPSS rescore
  18. 2026-08-07 16:23 UTCEPSS rescore
  19. 2026-08-05 19:14 UTCEPSS rescore
  20. 2026-08-04 10:34 UTCEPSS rescore
  21. 2026-07-30 16:25 UTCEPSS rescore
  22. 2026-07-30 16:25 UTCEPSS rescore
  23. 2026-07-30 01:28 UTCEPSS rescore
  24. 2026-07-30 01:27 UTCEPSS rescore
  25. 2026-07-28 15:33 UTCEPSS rescore
  26. 2026-07-26 14:52 UTCEPSS rescore
  27. 2026-07-26 14:52 UTCEPSS rescore
  28. 2026-07-25 14:15 UTCEPSS rescore
  29. 2026-07-24 14:15 UTCEPSS rescore
  30. 2026-07-23 14:16 UTCEPSS rescore
  31. 2026-07-23 01:57 UTCEG score recompute▲ 1.30
  32. 2026-07-22 22:43 UTCEG score recompute▼ 1.80
  33. 2026-07-22 14:06 UTCEPSS rescore
  34. 2026-07-22 14:06 UTCEPSS rescore
  35. 2026-07-20 17:05 UTCEPSS rescore
  36. 2026-07-19 02:27 UTCEPSS rescore
  37. 2026-07-19 02:27 UTCEPSS rescore
  38. 2026-07-15 16:55 UTCEPSS rescore
  39. 2026-07-15 16:55 UTCEPSS rescore
  40. 2026-07-15 01:58 UTCEPSS rescore
  41. 2026-07-12 05:44 UTCEPSS rescore
  42. 2026-07-12 05:44 UTCEPSS rescore
  43. 2026-07-09 19:07 UTCEPSS rescore
  44. 2026-07-04 06:29 UTCEPSS rescore
  45. 2026-07-04 06:29 UTCEPSS rescore
  46. 2026-07-02 16:57 UTCEPSS rescore
  47. 2026-06-30 23:20 UTCEPSS rescore
  48. 2026-06-30 23:20 UTCEPSS rescore
  49. 2026-06-29 14:04 UTCEPSS rescore
  50. 2026-06-28 04:54 UTCEPSS rescore
  51. 2026-06-28 04:54 UTCEPSS rescore
  52. 2026-06-25 13:48 UTCEPSS rescore
  53. 2026-06-25 13:48 UTCEPSS rescore
  54. 2026-06-24 14:03 UTCEPSS rescore
  55. 2026-06-24 14:03 UTCEPSS rescore
  56. 2026-06-23 21:31 UTCEPSS rescore
  57. 2026-06-23 21:31 UTCEPSS rescore
  58. 2026-06-21 01:58 UTCEPSS rescore
  59. 2026-06-21 01:58 UTCEPSS rescore
  60. 2026-06-18 17:51 UTCEPSS rescore
  61. 2026-06-18 17:51 UTCEPSS rescore
  62. 2026-06-17 17:51 UTCEPSS rescore
  63. 2026-06-16 17:51 UTCEPSS rescore
  64. 2026-06-15 17:46 UTCEPSS rescore
  65. 2026-06-14 23:15 UTCEPSS rescore
  66. 2026-06-13 22:58 UTCEPSS rescore
  67. 2026-06-13 22:58 UTCEPSS rescore
  68. 2026-06-12 23:10 UTCEPSS rescore
  69. 2026-06-10 22:16 UTCEPSS rescore
  70. 2026-06-06 13:46 UTCEPSS rescore
  71. 2026-06-06 13:46 UTCEPSS rescore
  72. 2026-06-06 13:46 UTCEPSS rescore
  73. 2026-06-05 06:09 UTCEPSS rescore
  74. 2026-06-05 06:09 UTCEPSS rescore
  75. 2026-05-31 22:29 UTCEPSS rescore

Publicly available exploits

(5 references)

Working exploit code is in the public domain (4 GitHub PoCs) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCVulnmachines/oracle-weblogic-CVE-2021-2109
    First seen Aug 30, 2022

    Oracle Weblogic RCE - CVE-2022-2109

    Open source ↗
  • GitHub PoCyuaneuro/CVE-2021-2109_poc
    First seen May 13, 2021

    weblogic CVE-2021-2109批量验证poc

    Open source ↗
  • Exploit-DBEDB-49461
    First seen Jan 22, 2021

    Oracle WebLogic Server 14.1.1.0 - RCE (Authenticated)

    Open source ↗
  • GitHub PoCAl1ex/CVE-2021-2109
    First seen Jan 22, 2021

    CVE-2021-2109 && Weblogic Server RCE via JNDI

    Open source ↗
  • GitHub PoCrabbitsafe/CVE-2021-2109
    First seen Jan 22, 2021
    Open source ↗

Frequently asked(5)

What is CVE-2021-2109?
CVE-2021-2109 is a high vulnerability published on January 20, 2021. Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Console). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP…
When was CVE-2021-2109 disclosed?
CVE-2021-2109 was first published on January 20, 2021, 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-2021-2109 actively exploited?
CVE-2021-2109 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 70% probability of exploitation in the next 30 days (99th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2021-2109?
CVE-2021-2109 has a CVSS v3 base score of 7.2 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.5 (HIGH).
How do I remediate CVE-2021-2109?
No fix for CVE-2021-2109 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix.

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