CVE-2021-27857

mediumpriority · track · 31EPSS 0.019 · 79 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.85% (79th) EPSS

CVSS 4.3 · medium

Is it mine?

24 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-21

A missing authorization vulnerability in the web management interface of FatPipe WARP, IPVPN, and MPVPN software prior to versions 10.1.2r60p91 and 10.2.2r42 allows a remote, unauthenticated attacker to download a configuration archive. The attacker needs to know or correctly guess the hostname of the target system since the hostname is used as part of the configuration archive file name. Older versions of FatPipe software may also be vulnerable. The FatPipe advisory identifier for this vulnerability is FPSA003.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.3–7.5

v2.04.3mediumAV:N/AC:M/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · cret@cert.org USexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-862USprimary

affected products (24)

Products and version ranges known to be affected.

FatPipe IPVPN10.1 → 10.1.2r60p91enisa_euvdEU
FatPipe IPVPN10.2 → 10.2.2r42enisa_euvdEU
FatPipe MPVPN10.1 → 10.1.2r60p91enisa_euvdEU
FatPipe MPVPN10.2 → 10.2.2r42enisa_euvdEU
FatPipe WARP10.1 → 10.1.2r60p91enisa_euvdEU
FatPipe WARP10.2 → 10.2.2r42enisa_euvdEU
fatpipeinc ipvpn firmware= 10.1.2nvdUScpe:2.3:o:fatpipeinc:ipvpn_firmware:*:*:*:*:*:*:*:*
fatpipeinc ipvpn firmware= 10.2.2nvdUScpe:2.3:o:fatpipeinc:ipvpn_firmware:*:*:*:*:*:*:*:*
fatpipeinc ipvpn firmware= 5.2.0nvdUScpe:2.3:o:fatpipeinc:ipvpn_firmware:*:*:*:*:*:*:*:*
fatpipeinc ipvpn firmware= 6.1.2nvdUScpe:2.3:o:fatpipeinc:ipvpn_firmware:*:*:*:*:*:*:*:*
fatpipeinc ipvpn firmware= 7.1.2nvdUScpe:2.3:o:fatpipeinc:ipvpn_firmware:*:*:*:*:*:*:*:*
fatpipeinc ipvpn firmware= 9.1.2nvdUScpe:2.3:o:fatpipeinc:ipvpn_firmware:*:*:*:*:*:*:*:*
fatpipeinc mpvpn firmware= 10.1.2nvdUScpe:2.3:o:fatpipeinc:mpvpn_firmware:*:*:*:*:*:*:*:*
fatpipeinc mpvpn firmware= 10.2.2nvdUScpe:2.3:o:fatpipeinc:mpvpn_firmware:*:*:*:*:*:*:*:*
fatpipeinc mpvpn firmware= 5.2.0nvdUScpe:2.3:o:fatpipeinc:mpvpn_firmware:*:*:*:*:*:*:*:*
fatpipeinc mpvpn firmware= 6.1.2nvdUScpe:2.3:o:fatpipeinc:mpvpn_firmware:*:*:*:*:*:*:*:*
fatpipeinc mpvpn firmware= 7.1.2nvdUScpe:2.3:o:fatpipeinc:mpvpn_firmware:*:*:*:*:*:*:*:*
fatpipeinc mpvpn firmware= 9.1.2nvdUScpe:2.3:o:fatpipeinc:mpvpn_firmware:*:*:*:*:*:*:*:*
fatpipeinc warp firmware= 10.1.2nvdUScpe:2.3:o:fatpipeinc:warp_firmware:*:*:*:*:*:*:*:*
fatpipeinc warp firmware= 10.2.2nvdUScpe:2.3:o:fatpipeinc:warp_firmware:*:*:*:*:*:*:*:*

showing 20 of 24

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2021-12-15modified 2026-06-17

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+11279 more

references (9)

External citations — patches, advisories, analysis.

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