CVE-2021-27486
The Fatek Automation WinProladder Versions 3.3 and prior are vulnerable to an integer underflow,...
FATEK Automation WinProladder Versions 3.30 and prior is vulnerable to an integer underflow, which may cause an out-of-bounds write and allow an attacker to execute arbitrary code.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
FATEK Automation WinProladder Versions 3.30 and prior is vulnerable to an integer underflow, which may cause an out-of-bounds write and allow an attacker to execute arbitrary code.
- Record
CVE-2021-27486- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-191
- Updated
- 2026-11-02
CVE List No score
FATEK Automation WinProladder Versions 3.30 and prior is vulnerable to an integer underflow, which may cause an out-of-bounds write and allow an attacker to execute arbitrary code.
- Record
CVE-2021-27486- Weakness
- CWE-191
- Updated
- 2026-11-02
EUVDEUVD-2021-14240 No score
FATEK Automation WinProladder Versions 3.30 and prior is vulnerable to an integer underflow, which may cause an out-of-bounds write and allow an attacker to execute arbitrary code.
- Record
EUVD-2021-14240- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-w8rx-73fm-r2mv No score
The Fatek Automation WinProladder Versions 3.3 and prior are vulnerable to an integer underflow,...
The Fatek Automation WinProladder Versions 3.3 and prior are vulnerable to an integer underflow, which may cause an out-of-bounds write and allow an attacker to execute arbitrary code.
- Record
GHSA-w8rx-73fm-r2mv- Weakness
- CWE-191
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-27486 is a high vulnerability (CVSS 7.8) in Fatek Winproladder, published April 12, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.02%, the 63rd percentile. No source names a fixed version.