CVE-2020-8243

HIGHNVD 7.29.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 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 7.2 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
7.2
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 91%CVSS: 7.2Exploit: NoneExposed: 0

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

A vulnerability in the Pulse Connect Secure < 9.1R8.2 admin web interface could allow an authenticated attacker to upload custom template to perform an arbitrary code execution.

CVSS v3
7.2
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

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
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
99.8%
KEV
⚠ Exploited

Published

September 30, 2020

Last Modified

December 18, 2025

Advisory Details (1)

Auto-updated Jun 11, 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-2020-8243

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 38× in last 7d / 188× 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 385 total refreshes for this CVE.

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

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Frequently asked(6)

What is CVE-2020-8243?
CVE-2020-8243 is a high vulnerability published on September 30, 2020. A vulnerability in the Pulse Connect Secure < 9.1R8.2 admin web interface could allow an authenticated attacker to upload custom template to perform an arbitrary code execution.
When was CVE-2020-8243 disclosed?
CVE-2020-8243 was first published in the National Vulnerability Database on September 30, 2020, with the most recent update on December 18, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-8243 actively exploited?
Yes. CISA added CVE-2020-8243 to the Known Exploited Vulnerabilities catalog on November 3, 2021, affecting Ivanti Pulse Connect Secure. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2020-8243?
CVE-2020-8243 has a CVSS v3 base score of 7.2 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2020-8243?
CVE-2020-8243 affects Ivanti Pulse Connect Secure. 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-2020-8243?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-8243, 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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