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PatchSiren cyber security CVE debrief

CVE-2021-27860 FatPipe CVE debrief

CVE-2021-27860 is a FatPipe vulnerability CISA lists in its Known Exploited Vulnerabilities catalog as a "Configuration Upload exploit." Because it is in KEV, defenders should treat it as an active risk and prioritize vendor-recommended updates. CISA added it on 2022-01-10 and set a remediation due date of 2022-01-24.

Vendor
FatPipe
Product
WARP, IPVPN, and MPVPN software
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-01-10
Original CVE updated
2022-01-10
Advisory published
2022-01-10
Advisory updated
2022-01-10

Who should care

Administrators and security teams responsible for FatPipe WARP, IPVPN, and MPVPN software should prioritize this immediately, especially in environments where the software is externally reachable or plays a critical network role.

Technical summary

The supplied corpus identifies the issue only as a FatPipe "Configuration Upload exploit" affecting WARP, IPVPN, and MPVPN software. The authoritative data provided here does not include deeper technical details such as the underlying flaw, attack prerequisites, or impact. What is clear from the CISA KEV entry is that the vulnerability is known to be exploited and should be remediated per vendor instructions.

Defensive priority

Immediate / High — CISA’s KEV listing signals known exploitation, and the catalog assigns a 14-day remediation window (2022-01-10 to 2022-01-24).

Recommended defensive actions

  • Apply updates per vendor instructions as directed by CISA.
  • Confirm whether any FatPipe WARP, IPVPN, or MPVPN deployments exist in your environment.
  • Prioritize remediation for externally exposed or operationally critical instances.
  • Validate remediation using vendor guidance and internal asset records.

Evidence notes

CISA’s KEV JSON entry lists CVE-2021-27860 for FatPipe WARP, IPVPN, and MPVPN software, names the issue a "Configuration Upload exploit," and records dateAdded 2022-01-10, dueDate 2022-01-24, and requiredAction "Apply updates per vendor instructions." The corpus also references the official NVD CVE detail page and CVE.org record. No CVSS score or severity is included in the supplied data.

Official resources

Publicly disclosed in the supplied corpus via CISA’s KEV catalog on 2022-01-10; no additional vendor advisory text was provided.