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ExploitedIn CISA KEV

CVE-2021-27860

Exploitation confirmed. First attested on 2022-01-10 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2021-12-08
  • WeaknessCWE-434

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2021-12-0817:15CVE publishedNVD
  2. 2022-01-10Added to the CISA KEV catalogCISA KEV
  3. 2022-01-10Listed as exploited by GCVEGCVE
  4. 2022-01-10Exploitation first reportedCISA KEV
  5. 2025-02-0419:32SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-27860?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-27860?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Fatpipeinc ipvpn firmwareversion to verify
BranchAffectedFixed in
5.2= 5.2.0no fix published
6.1= 6.1.2no fix published
7.1= 7.1.2no fix published
9.1= 9.1.2no fix published
10.1= 10.1.2no fix published
10.2= 10.2.2no fix published
Fatpipeinc mpvpn firmwareversion to verify
BranchAffectedFixed in
5.2= 5.2.0no fix published
6.1= 6.1.2no fix published
7.1= 7.1.2no fix published
9.1= 9.1.2no fix published
10.1= 10.1.2no fix published
10.2= 10.2.2no fix published
Fatpipeinc warp firmwareversion to verify
BranchAffectedFixed in
5.2= 5.2.0no fix published
6.1= 6.1.2no fix published
7.1= 7.1.2no fix published
9.1= 9.1.2no fix published
10.1= 10.1.2no fix published
10.2= 10.2.2no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA3 products

As certcc, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • FatPipe WARP
    Affected
    • ≥ 10.1, < 10.1.2r60p92fixed in 10.1.2r60p92custom
    • ≥ 10.2, < 10.2.2r44p1fixed in 10.2.2r44p1custom
  • FatPipe IPVPN
    Affected
    • ≥ 10.1, < 10.1.2r60p92fixed in 10.1.2r60p92custom
    • ≥ 10.2, < 10.2.2r44p1fixed in 10.2.2r44p1custom
  • FatPipe MPVPN
    Affected
    • ≥ 10.1, < 10.1.2r60p92fixed in 10.1.2r60p92custom
    • ≥ 10.2, < 10.2.2r44p1fixed in 10.2.2r44p1custom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2023-10-13

Fix

  1. CISA’s required action: Apply updates per vendor instructions.due 2022-01-24

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2022-01-10
Patch Due Date
2022-01-24
Ransomware Use
Unknown
Required Action
Apply updates per vendor instructions.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2021-12-08
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-hfgw-xgjr-v384

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.

Is CVE-2021-27860 actively exploited?

Yes. CVE-2021-27860 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-01-24.

What is the CVSS score for CVE-2021-27860?

CVE-2021-27860 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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Sources for this record