Buffer overflow in Fatek Plc Winproladder

CVE-2016-8377

An issue was discovered in Fatek Automation PLC WinProladder Version 3.11 Build 14701. A stack-based buffer overflow vulnerability exists when the software application connects to a malicious server, resulting in a stack buffer overflow. This causes an exploitable Structured Exception Handler (SEH) overwrite condition that may allow remote code execution.

Vulnerability class: Buffer Overflow

EPSS: 0.089 (94.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2016-8377?
CVE-2016-8377 is a high-severity vulnerability in Fatek Plc Winproladder, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.0/10. Published 2017-02-13.
How severe is CVE-2016-8377?
High severity. CVSS v3 base score is 8.0 out of 10.
Is CVE-2016-8377 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.