What is CVE-2021-41564?

CVE-2021-41564 is a medium-severity vulnerability in Tad Honor, classified under Improper Authorization. CVSS score: 5.3/10. Published 2021-10-08.

How severe is CVE-2021-41564?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Tad Honor

CVE-2021-41564

Tad Honor viewing book list function is vulnerable to authorization bypass, thus remote attackers can use special parameters to delete articles arbitrarily without logging in.

Published 2021-10-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.010 (62.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Tad Honor — versions 0
Tad Honor Project

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

www.twcert.org.tw/tw/cp-132-5168-52304-1.html (Third Party Advisory)

Frequently asked questions

What is CVE-2021-41564?: CVE-2021-41564 is a medium-severity vulnerability in Tad Honor, classified under Improper Authorization. CVSS score: 5.3/10. Published 2021-10-08.
How severe is CVE-2021-41564?: Medium severity. CVSS v3 base score is 5.3 out of 10.