November 13, 2026 Follow Egret
CVE-2021-27860 · CVE record: PUBLISHED

Arbitrary file upload vulnerability in FatPipe software

FatPipe WARP, FatPipe IPVPN, FatPipe MPVPN

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.

Exploitation evidence

Known exploited · CISA KEV listed

Added 2022-01-10. Ransomware campaign use: Unknown.

CISA required action: Apply updates per vendor instructions.

CISA due date: 2022-01-24. This is the catalog’s deadline, not an assessment of your organization’s exposure.

KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗

Reported products and versions

FatPipe / WARP

Default status: Not specified

  • affected: 10.1 to < 10.1.2r60p92 (custom)
  • affected: 10.2 to < 10.2.2r44p1 (custom)

FatPipe / IPVPN

Default status: Not specified

  • affected: 10.1 to < 10.1.2r60p92 (custom)
  • affected: 10.2 to < 10.2.2r44p1 (custom)

FatPipe / MPVPN

Default status: Not specified

  • affected: 10.1 to < 10.1.2r60p92 (custom)
  • affected: 10.2 to < 10.2.2r44p1 (custom)

Fixes and workarounds

No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.

Sources and related reporting

CVE Program record ↗ · Download tracked evidence as JSON

Observed change timeline

History begins when Egret first downloads each source. It is not the complete upstream CVE history.

12 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-12",
  "epss": 0.3968,
  "percentile": 0.98641
}
10 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-10",
  "epss": 0.3968,
  "percentile": 0.98632
}
09 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-09",
  "epss": 0.3968,
  "percentile": 0.9863
}
08 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-08",
  "epss": 0.3968,
  "percentile": 0.98629
}
07 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-07",
  "epss": 0.3968,
  "percentile": 0.98628
}
06 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-06",
  "epss": 0.3968,
  "percentile": 0.98627
}
06 Nov 2026, 06:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-05",
  "epss": 0.3968,
  "percentile": 0.98625
}
05 Nov 2026, 18:20 Jerusalem · CVE Program record changed

Stored CNA snapshot at this observation.

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        }
      ],
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            "baseScore": 9.8,
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            "confidentialityImpact": "HIGH",
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04 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-04",
  "epss": 0.3968,
  "percentile": 0.98624
}
03 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-03",
  "epss": 0.3968,
  "percentile": 0.98621
}
03 Nov 2026, 02:22 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-02",
  "epss": 0.3968,
  "percentile": 0.98619
}
03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed

Stored KEV snapshot at this observation.

{
  "cveID": "CVE-2021-27860",
  "cwes": [
    "CWE-434"
  ],
  "dateAdded": "2022-01-10",
  "dueDate": "2022-01-24",
  "forensicTriage": "No",
  "knownRansomwareCampaignUse": "Unknown",
  "notes": "https://nvd.nist.gov/vuln/detail/CVE-2021-27860",
  "product": "WARP, IPVPN, and MPVPN software",
  "requiredAction": "Apply updates per vendor instructions.",
  "shortDescription": "A vulnerability in the web management interface of FatPipe WARP, IPVPN, and MPVPN software allows a remote, unauthenticated attacker to upload a file to any location on the filesystem.",
  "vendorProject": "FatPipe",
  "vulnerabilityName": "FatPipe WARP, IPVPN, and MPVPN Configuration Upload exploit"
}
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