CVE-2021-27859
No exploitation reported by the sources we read.
- Published2021-12-15
- WeaknessCWE-862
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « 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 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 an authenticated, remote attacker with read-only privileges to create an account with administrative privileges. Older versions of FatPipe software may also be vulnerable. This does not appear to be a CSRF vulnerability. The FatPipe advisory identifier for this vulnerability is FPSA005.
Timeline
dates in UTC- 2021-12-1520:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-27859?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-27859?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 5.2 | = 5.2.0 | no fix published | NVD |
| 6.1 | = 6.1.2 | no fix published | NVD |
| 7.1 | = 7.1.2 | no fix published | NVD |
| 9.1 | = 9.1.2 | no fix published | NVD |
| 10.1 | = 10.1.2 | no fix published | NVD |
| 10.2 | = 10.2.2 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 5.2 | = 5.2.0 | no fix published | NVD |
| 6.1 | = 6.1.2 | no fix published | NVD |
| 7.1 | = 7.1.2 | no fix published | NVD |
| 9.1 | = 9.1.2 | no fix published | NVD |
| 10.1 | = 10.1.2 | no fix published | NVD |
| 10.2 | = 10.2.2 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 5.2 | = 5.2.0 | no fix published | NVD |
| 6.1 | = 6.1.2 | no fix published | NVD |
| 7.1 | = 7.1.2 | no fix published | NVD |
| 9.1 | = 9.1.2 | no fix published | NVD |
| 10.1 | = 10.1.2 | no fix published | NVD |
| 10.2 | = 10.2.2 | no fix published | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
Advisories and patches
- www.fatpipeinc.comVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Published
- 2021-12-15
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2021-27859?
Is CVE-2021-27859 actively exploited?
What is the CVSS score for CVE-2021-27859?
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