What is CVE-2021-36631?

CVE-2021-36631 is a medium-severity vulnerability in Baidu Baidunetdisk, classified under Uncontrolled Search Path Element. CVSS score: 6.7/10. Published 2022-12-22.

How severe is CVE-2021-36631?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Vulnerability in Baidu Baidunetdisk

CVE-2021-36631

Untrusted search path vulnerability in Baidunetdisk Version 7.4.3 and earlier allows an attacker to gain privileges via a Trojan horse DLL in an unspecified directory.

Published 2022-12-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (22.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 22.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Baidu Baidunetdisk

Weakness classification (CWE)

CWE-427 — Uncontrolled Search Path Element

References

github.com/shigophilo/CVE/blob/main/Baidunetdisk Version 7.4.3 dll hijack.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-36631?: CVE-2021-36631 is a medium-severity vulnerability in Baidu Baidunetdisk, classified under Uncontrolled Search Path Element. CVSS score: 6.7/10. Published 2022-12-22.
How severe is CVE-2021-36631?: Medium severity. CVSS v3 base score is 6.7 out of 10.