What is CVE-2021-37213?

CVE-2021-37213 is a medium-severity vulnerability in Larvata Flygo, classified under Use of Incorrectly-Resolved Name or Reference. CVSS score: 4.3/10. Published 2021-08-09.

How severe is CVE-2021-37213?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Larvata Flygo

CVE-2021-37213

The check-in record page of Flygo contains Insecure Direct Object Reference (IDOR) vulnerability. After being authenticated as a general user, remote attackers can manipulate the employee ID and date in specific parameters to access particular employee’s check-in record.

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

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.008 (53.9th percentile), scored 2026-10-04.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · 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-132-4990-0c75d-1.html (Third Party Advisory)

Frequently asked questions

What is CVE-2021-37213?: CVE-2021-37213 is a medium-severity vulnerability in Larvata Flygo, classified under Use of Incorrectly-Resolved Name or Reference. CVSS score: 4.3/10. Published 2021-08-09.
How severe is CVE-2021-37213?: Medium severity. CVSS v3 base score is 4.3 out of 10.