CVE-2024-40720 json
CHANGING Information Technology TCBServiSign Windows Version - Improper Input Validation
published 2024-08-02 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-38585
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 48%
- public exploits
- 0
- none known
Summary
The specific API in TCBServiSign Windows Version from CHANGING Information Technology does not properly validate server-side input. When a user visits a spoofed website, unauthenticated remote attackers can modify the `HKEY_CURRENT_USER` registry to execute arbitrary commands.
Patch / fix
- CHANGING Information Technology TCBServiSign Windows Version 1.0.24.0318
- changinginformationtechnology tcbservisign 1.0.24.0318
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 y ago
Exploit prediction
0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected products
- CHANGING Information Technology TCBServiSign Windows Version
- changinginformationtechnology tcbservisign
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
twcert.org.tw
/tw/cp-132-7965-8285d-1.html
third-party-advisory
-
twcert.org.tw
/en/cp-139-7971-d9584-2.html
third-party-advisory
Sources
- CVE List CVE-2024-40720
- NVD CVE-2024-40720
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.