CVE-2021-27860Arbitrary file upload vulnerability in FatPipe software

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.

9.8 CRITICALEPSS 39.68%⚡ Known Exploited (CISA KEV)NVD: Analyzed

Last updated: 2026-06-17 03:45 UTC

OverviewCVSS details

9.8CRITICALCVSS 3.1

Score source: certcc (CNA)
NVD status: Analyzed
Published: Dec 8, 2021
Assigner: certcc

Affected

WARP (FatPipe)

Versions: 10.1 before 10.1.2r60p92 · 10.2 before 10.2.2r44p1
Fixed in: 10.1.2r60p92, 10.2.2r44p1

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Exploitation

Public exploit: Yes · 1 reference
CISA KEV: Listed · Jan 10, 2022
KEV due date: Jan 24, 2022
Ransomware use: Unknown
SSVC: Exploitation active · Automatable yes · Impact total

EPSS · FIRST, scored Nov 7

39.68%chance of exploitation in 30 days

Higher than 98.62% of CVEs

CVSS 3.1 · certcc (CNA)

9.8Critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 3.1 · NVD

8.8High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: Required
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 2.0 · NVD

9.3High

AV:N/AC:M/Au:N/C:C/I:C/A:C

Attack vector: Network
Attack complexity: Medium
Authentication: None
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

NVD status: Analyzed

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
9.8	CRITICAL	3.1certcc (CNA)	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.8	HIGH	3.1NVD	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
9.3	HIGH	2.0NVD	AV:N/AC:M/Au:N/C:C/I:C/A:C

CISA required action

⚡ Known exploited · remediation due Jan 24, 2022

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Details

CVE ID: CVE-2021-27860
Status: Analyzed
Assigner (CNA): certcc
Published: Dec 8, 2021
Last modified: 2026-06-17 03:45 UTC
Weaknesses: CWE-434

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 11:31 UTC.