What is CVE-2021-40852?

CVE-2021-40852 is a medium-severity vulnerability in Tcman Gim, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2021-12-17.

How severe is CVE-2021-40852?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Open Redirect in Tcman Gim

CVE-2021-40852

TCMAN GIM is affected by an open redirect vulnerability. This vulnerability allows the redirection of user navigation to pages controlled by the attacker. The exploitation of this vulnerability might allow a remote attacker to obtain information.

Vulnerability class: Open Redirect

Published 2021-12-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (52.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Tcman Gim — versions 8.0, 11.0

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

References

www.incibe-cert.es/en/early-warning/security-advisories/tcman-gim-open-redirect… (Third Party Advisory)

Frequently asked questions

What is CVE-2021-40852?: CVE-2021-40852 is a medium-severity vulnerability in Tcman Gim, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2021-12-17.
How severe is CVE-2021-40852?: Medium severity. CVSS v3 base score is 6.1 out of 10.