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CVE-2021-27860

8.8, high Known exploited

FatPipe WARP, IPVPN, and MPVPN Configuration Upload exploit

NVD (opens in a new tab) CVE.org (opens in a new tab) CISA KEV catalogue (opens in a new tab)
CVSS
8.8, high high CVSS v3.1
EPSS, next 30 days
40% higher than 98.6% of scored CVEs
Exploitation
Confirmed in the wild
Published
8 Dec 20214 years ago

Known exploited

CISA added this to the Known Exploited Vulnerabilities Catalog on 10 Jan 2022. US federal agencies had to remediate by 24 Jan 2022, a deadline that has passed.

Required action. Apply updates per vendor instructions.

Description

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.

Details

Vendor
FatPipe
Product
WARP
Weakness
CWE-434 (opens in a new tab)
Status
Analyzed
Updated
17 Jun 2026
Assigner
cret@cert.org

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

References 3

Exploit code 1

Advisories 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Beyond this page

Is CVE-2021-27860 in your network?

This page tells you how dangerous CVE-2021-27860 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

CVE-2021-27860 is in the CISA catalogue of exploited vulnerabilities: attackers are already exploiting it.

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  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.