CVE-2020-15069

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 2025-02-06), 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: 11%CVSS: 9.8Exploit: NoneExposed: 0

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

Sophos XG Firewall 17.x through v17.5 MR12 allows a Buffer Overflow and remote code execution via the HTTP/S Bookmarks feature for clientless access. Hotfix HF062020.1 was published for all firewalls running v17.x.

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
95.3%
KEV
⚠ Exploited

Published

June 29, 2020

Last Modified

November 7, 2025

Advisory Details (2)

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-2020-15069
generic
https://community.sophos.com/b/security-blog/posts/advisory-buffer-overflow-vulnerability-in-user-portal

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 57× in last 7d / 230× 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 415 total refreshes for this CVE.

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

Frequently asked(6)

What is CVE-2020-15069?
CVE-2020-15069 is a critical vulnerability published on June 29, 2020. Sophos XG Firewall 17.x through v17.5 MR12 allows a Buffer Overflow and remote code execution via the HTTP/S Bookmarks feature for clientless access. Hotfix HF062020.1 was published for all firewalls running v17.x.
When was CVE-2020-15069 disclosed?
CVE-2020-15069 was first published in the National Vulnerability Database on June 29, 2020, with the most recent update on November 7, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-15069 actively exploited?
Yes. CISA added CVE-2020-15069 to the Known Exploited Vulnerabilities catalog on February 6, 2025, affecting Sophos XG Firewall. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2020-15069?
CVE-2020-15069 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2020-15069?
CVE-2020-15069 affects Sophos XG Firewall. 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-2020-15069?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-15069, 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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