NVD / CVE Program· CNA certcc

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

HighCVSS 8.8 · v3.1KEVWeaponized No fix recorded

Noroxi assessment

Priority: This week (action score 77/100)

CISA has confirmed exploitation in the wild (Jan 10, 2022). Remediation deadline for US federal agencies: Jan 24, 2022.
Probability of exploitation in the next 30 days: 39.6% (FIRST EPSS); higher than 98.6% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
According to CISA the attack is automatable: targets can be found by mass scanning.
According to the record, no fixed version is available yet.

Don’t wait for the next maintenance window. Until a fix is released, restrict access to the affected component and follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · CISA KEV · FIRST EPSS

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.

BDU:2023-00811

Published: Dec 8, 2021
Updated: Jun 16, 2026
EPSS: 39.6% · 98th percentile
CWE: CWE-434

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Action score

This week

Don’t wait for the next maintenance window.

CVSS: 35 / 40 · 8.8 / 10
CISA KEV: 30 / 30 · Listed
EPSS: 12 / 30 · 39.6%

CISA SSVC decision

Exploitation: active
Automatable: yes
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 8.8
CNA · certcc: 9.8; 1.0 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Jan 10, 2022. That signals real attacks, not theory.

Remediation deadline for US federal agencies: Jan 24, 2022.

Get told when this record changes

In CISA KEV: exploitation in the wild confirmed
Weaponized exploit exists
No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
fatpipeinc	ipvpn firmware	cpe:2.3:o:fatpipeinc:ipvpn_firmware
fatpipeinc	ipvpn	cpe:2.3:h:fatpipeinc:ipvpn
fatpipeinc	warp firmware	cpe:2.3:o:fatpipeinc:warp_firmware
fatpipeinc	warp	cpe:2.3:h:fatpipeinc:warp
fatpipeinc	mpvpn firmware	cpe:2.3:o:fatpipeinc:mpvpn_firmware
fatpipeinc	mpvpn	cpe:2.3:h:fatpipeinc:mpvpn

Versions reported by the vendor

Affected version ranges reported by the assigning authority (certcc). Independent of NVD's CPE analysis and usually ahead of it.

FatPipe IPVPN
- 10.1 and later · before 10.1.2r60p92affected
- 10.2 and later · before 10.2.2r44p1affected
FatPipe MPVPN
- 10.1 and later · before 10.1.2r60p92affected
- 10.2 and later · before 10.2.2r44p1affected
FatPipe WARP
- 10.1 and later · before 10.1.2r60p92affected
- 10.2 and later · before 10.2.2r44p1affected

Affected versions · NVD (18)

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

fatpipeinc ipvpn firmware10.1.2
fatpipeinc ipvpn firmware10.2.2
fatpipeinc ipvpn firmware5.2.0
fatpipeinc ipvpn firmware6.1.2
fatpipeinc ipvpn firmware7.1.2
fatpipeinc ipvpn firmware9.1.2
fatpipeinc mpvpn firmware10.1.2
fatpipeinc mpvpn firmware10.2.2
fatpipeinc mpvpn firmware5.2.0
fatpipeinc mpvpn firmware6.1.2
fatpipeinc mpvpn firmware7.1.2
fatpipeinc mpvpn firmware9.1.2
fatpipeinc warp firmware10.1.2
fatpipeinc warp firmware10.2.2
fatpipeinc warp firmware5.2.0
fatpipeinc warp firmware6.1.2
fatpipeinc warp firmware7.1.2
fatpipeinc warp firmware9.1.2

Same product

fatpipeinc: all records

Other highest-scoring records for the same primary product.

CVE-2021-27856FatPipe software administrative account with no password
41Plan
CVE-2021-27859Missing authorization vulnerability in FatPipe software
36Monitor
CVE-2021-27855FatPipe software allows privilege escalation
35Monitor

Published before and after this one in the same product

Later →CVE-2021-27857Dec 15, 2021 · FatPipe software allows unauthenticated configuration download
31Monitor
Later →CVE-2021-27858Dec 15, 2021 · Missing authorization vulnerability in FatPipe software
22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.