CVE-2021-27858 | Missing authorization vulnerability in FatPipe software

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 attacker to access at least the URL "/fpui/jsp/index.jsp" leading to unknown impact, presumably some violation of confidentiality. Older versions of FatPipe software may also be vulnerable. The FatPipe advisory identifier for this vulnerability is FPSA004.

Published: 2021-12-15 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-27858 is rated Moderate Risk (45.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.70%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-27858

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 32.40% 2.70% -29.70%
2 2026-04-20 27.29% 32.40% +5.11%
3 2026-03-06 — 27.29% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-27858

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2021-27858

Affected software / configurations for CVE-2021-27858

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

References for CVE-2021-27858

cvelogic Threat Intelligence