What is CVE-2021-37212?

CVE-2021-37212 is a medium-severity vulnerability in Larvata Flygo, classified under Use of Incorrectly-Resolved Name or Reference. CVSS score: 5.4/10. Published 2021-08-09.

How severe is CVE-2021-37212?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Auth bypass in Larvata Flygo

CVE-2021-37212

The bulletin function of Flygo contains Insecure Direct Object Reference (IDOR) vulnerability. After being authenticated as a general user, remote attackers can manipulate the bulletin ID in specific Url parameters and access and modify bulletin particular content.

Published 2021-08-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (48.9th percentile), scored 2026-10-04.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Larvata Flygo
Larvata Digital Technology Co. Ltd. Flygo — versions unspecified

Weakness classification (CWE)

References

www.twcert.org.tw/tw/cp-132-4989-5d955-1.html (Third Party Advisory)

Frequently asked questions

What is CVE-2021-37212?: CVE-2021-37212 is a medium-severity vulnerability in Larvata Flygo, classified under Use of Incorrectly-Resolved Name or Reference. CVSS score: 5.4/10. Published 2021-08-09.
How severe is CVE-2021-37212?: Medium severity. CVSS v3 base score is 5.4 out of 10.