Vulnerability Report

CVE-2021-27860

CISA KEV Active

Title: Arbitrary file upload in FatPipe WARP, IPVPN, and MPVPN

Arbitrary File Upload

Proof Of Concept

No public PoC currently indexed for CVE-2021-27860.

CWE Category CWE-434
Published Date Dec 08, 2021
Modified Date Oct 24, 2025
Exploit Status Not Found
Score 9.8 CVSS v3.1
Exploit Probability (EPSS)
39.66%

Vulnerability Summary

CVE-2021-27860: 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.

Impacted Vendors

C
cloudflare 1
F
fatpipeinc 3

Reference Links

https://www.fatpipeinc.com/support/cve-list.php https://www.ic3.gov/Media/News/2021/211117-2.pdf https://www.fatpipeinc.com/support/cve-list.php https://www.ic3.gov/Media/News/2021/211117-2.pdf https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-27860
CVSS v3.1
Source Entity [email protected]
Severity CRITICAL
9.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v3.1
Source Entity [email protected]
Severity HIGH
8.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity HIGH
9.3
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:M/Au:N/C:C/I:C/A:C

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2021-27860 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.