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Kerlink Wirnet iStation Buffer Overflow Vulnerability in KerOS through 4.3.3

Vulnerability

A buffer overflow vulnerability has been identified in the Kerlink Wirnet iStation SNMP update mechanism, specifically in KerOS versions through 4.3.3. This vulnerability allows remote attackers to cause memory corruption and disclose limited sensitive information by exploiting improper URL handling in the update process.

Impact

Exploitation of this vulnerability leads to memory corruption, which can commonly be exploited to execute arbitrary code.

Remediation

Users are advised to upgrade to the latest version of KerOS 6, as KerOS 4 and 5 are no longer supported.

Added: Jul 16, 2026, 11:25 PM
Updated: Jul 16, 2026, 11:25 PM

Vulnerability Rating

Custom Algorithm
spread
0.0
impact
0.6
exploitability
5.2
remediation
0.0
relevance
9.7
threat
0.0
urgency
2.9
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.