CVE-2024-40719

6.5 mediumEPSS 0.2%

Medium (6.5) in changingtec tcb servisign. EPSS 0.2% chance of exploitation in the next 30 days.

The encryption strength of the authorization keys in CHANGING Information Technology TCBServiSign Windows Version is insufficient. When a remote attacker tricks a victim into visiting a malicious website, TCBServiSign will treat that website as a legitimate server and interact with it.

Severity

CVSS 3.1

6.5 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 8% of CVEs (scores of 2026-10-31)
CWE: CWE-326
Published: 2024-08-02
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

changingtec:tcb_servisign

References

https://www.twcert.org.tw/en/cp-139-7970-e8ac5-2.html
https://www.twcert.org.tw/tw/cp-132-7964-5b266-1.html

Check your stack JSON