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
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 11%CVSS: 9.8Exploit: cisa kev · ssvc active · epss top5pctExposed: 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 PROB
11%
EPSS %ILE
96%
KEV
⚠ Exploited

Published

June 29, 2020

Last Modified

November 7, 2025

Advisory Details (2)

Auto-updated Sep 17, 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 59× in last 7d / 245× 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 875 total refreshes for this CVE.

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