{"cve":"CVE-2021-27855","nvd":{"published":"2021-12-15T20:15:07.940","modified":"2026-06-17T03:45:31.553","status":"Modified","description":"FatPipe WARP, IPVPN, and MPVPN software prior to versions 10.1.2r60p91 and 10.2.2r42 allows a remote, authenticated attacker with read-only privileges to grant themselves administrative privileges. Older versions of FatPipe software may also be vulnerable. The FatPipe advisory identifier for this vulnerability is FPSA001.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-862"],"references":["https://www.fatpipeinc.com/support/cve-list.php","https://www.zeroscience.mk/codes/fatpipe_privesc.txt","https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5685.php","https://www.fatpipeinc.com/support/cve-list.php","https://www.zeroscience.mk/codes/fatpipe_privesc.txt"],"products":["fatpipeinc:ipvpn_firmware","fatpipeinc:mpvpn_firmware","fatpipeinc:warp_firmware"],"source":"nvd","synced_at":"2026-10-19T21:25:41.256909649+00:00"},"epss":{"cve":"CVE-2021-27855","score":0.01657,"percentile":0.76612,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}