How severe is CVE-2021-27860?

CVE-2021-27860 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-27860 being actively exploited?

Yes. CVE-2021-27860 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-01-10, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2021-27860?

CVE-2021-27860 primarily affects Fatpipeinc Ipvpn Firmware. In total, 108 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-27860?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2021-27860 have an EU (EUVD) identifier?

Yes. CVE-2021-27860 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-14598. It is also flagged as exploited in the EUVD (since 2022-01-10).

When was CVE-2021-27860 published?

CVE-2021-27860 was published on 2021-12-08 and last updated on 2026-06-17.

CVE-2021-27860

CVE-2021-27860 is a critical-severity vulnerability in Fatpipeinc Ipvpn Firmware with a CVSS 3.x base score of 9.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-01-10). The underlying weakness is classified as CWE-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 9.3
EPSS exploit prediction: 40% (98th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2022-01-10)
EU (EUVD) id: EUVD-2021-14598
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2022-01-10)
Weakness: CWE-434
Affected product: Fatpipeinc Ipvpn Firmware
Published: 2021-12-08
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2021-27860?: CVE-2021-27860 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-27860 being actively exploited?: Yes. CVE-2021-27860 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-01-10, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2021-27860?: CVE-2021-27860 primarily affects Fatpipeinc Ipvpn Firmware. In total, 108 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-27860?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2021-27860 have an EU (EUVD) identifier?: Yes. CVE-2021-27860 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-14598. It is also flagged as exploited in the EUVD (since 2022-01-10).
When was CVE-2021-27860 published?: CVE-2021-27860 was published on 2021-12-08 and last updated on 2026-06-17.

References

Affected products (108)

cpe:2.3:o:fatpipeinc:ipvpn_firmware:5.2.0:r34:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:6.1.2:r70p26:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:6.1.2:r70p45-m:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:6.1.2:r70p75-m:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:7.1.2:r39:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r129:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r144:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r150:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r156:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r161p12:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r161p16:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r161p17:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r161p2:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r161p20:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r161p26:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r161p3:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r164:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r164p4:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r164p5:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r165:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r180p2:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r185:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p10:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p13:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p32:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p35:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p45:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p55:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p58:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p58s1:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p65:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p71:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p82:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.2.2:r10:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.2.2:r25:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.2.2:r38:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:warp_firmware:5.2.0:r34:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:warp_firmware:6.1.2:r70p26:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:warp_firmware:6.1.2:r70p45-m:*:*:*:*:*:*
cpe:2.3:o:fatpipeinc:warp_firmware:6.1.2:r70p75-m:*:*:*:*:*:*

More vulnerabilities in Fatpipeinc Ipvpn Firmware

CVE-2021-27856 — Critical (CVSS 9.8): FatPipe WARP, IPVPN, and MPVPN software prior to versions 10.1.2r60p91 and 10.2.2r42 includes an account named "cmuser"…
CVE-2021-27859 — High (CVSS 8.8): A missing authorization vulnerability in the web management interface of FatPipe WARP, IPVPN, and MPVPN software prior…
CVE-2021-27855 — High (CVSS 8.8): FatPipe WARP, IPVPN, and MPVPN software prior to versions 10.1.2r60p91 and 10.2.2r42 allows a remote, authenticated…
CVE-2021-27857 — High (CVSS 7.5): A missing authorization vulnerability in the web management interface of FatPipe WARP, IPVPN, and MPVPN software prior…
CVE-2021-27858 — Medium (CVSS 5.3): A missing authorization vulnerability in the web management interface of FatPipe WARP, IPVPN, and MPVPN software prior…

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