CVE-2021-27860

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 2022-01-10), 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: 40%CVSS: 9.8Exploit: NoneExposed: 0

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

A vulnerability in the web management interface of FatPipe WARP, IPVPN, and MPVPN software prior to versions 10.1.2r60p92 and 10.2.2r44p1 allows a remote, unauthenticated attacker to upload a file to any location on the filesystem. The FatPipe advisory identifier for this vulnerability is FPSA006.

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
98.5%
KEV
⚠ Exploited

Published

December 8, 2021

Last Modified

October 24, 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-2021-27860
generic

Support

https://www.fatpipeinc.com/support/cve-list.php

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 59× in last 7d / 239× 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 443 total refreshes for this CVE.

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

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Frequently asked(6)

What is CVE-2021-27860?
CVE-2021-27860 is a critical vulnerability published on December 8, 2021. A vulnerability in the web management interface of FatPipe WARP, IPVPN, and MPVPN software prior to versions 10.1.2r60p92 and 10.2.2r44p1 allows a remote, unauthenticated attacker to upload a file to any location on the filesystem. The FatPipe advisory identifier for this vulnerability is FPSA006.
When was CVE-2021-27860 disclosed?
CVE-2021-27860 was first published in the National Vulnerability Database on December 8, 2021, with the most recent update on October 24, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-27860 actively exploited?
Yes. CISA added CVE-2021-27860 to the Known Exploited Vulnerabilities catalog on January 10, 2022, affecting FatPipe WARP, IPVPN, and MPVPN software. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2021-27860?
CVE-2021-27860 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2021-27860?
CVE-2021-27860 affects FatPipe WARP, IPVPN, and MPVPN software. 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-2021-27860?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-27860, 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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