Improper input validation in the IPsec VPN function may allow a remote attacker with high privileges to inject system commands and execute them with root privileges.
0.5% estimated probability of exploitation activity in the next 30 days; 40th percentile. Scored 2026-11-04. A forecast for this CVE across the internet, not for your own systems.
CISA's assessment (SSVC)
Exploitation: none · Automatable: no · Technical impact: total, assessed 2026-11-03. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
CWE
CWE-77Improper Neutralization of Special Elements used in a Command
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Versions
From the CNA's record in the CVE List.
Product
Affected
Welotec TK100
from 0.0.0 before 3.5.116
Welotec TK500-v2
from 0.0.0 before 1.0.124
Welotec TK500-v3
from 0.0.0 before 1.0.123
Attack patterns (CAPEC)
CAPEC-15 Command Delimiters Likelihood: High · Severity: High
CAPEC-40 Manipulating Writeable Terminal Devices Likelihood: High · Severity: Very High
CAPEC-43 Exploiting Multiple Input Interpretation Layers Likelihood: Medium · Severity: High
CAPEC-75 Manipulating Writeable Configuration Files Likelihood: High · Severity: Very High
CAPEC-76 Manipulating Web Input to File System Calls Likelihood: High · Severity: Very High
CAPEC-136 LDAP Injection Likelihood: High · Severity: High
CAPEC-183 IMAP/SMTP Command Injection Severity: Medium
CAPEC-248 Command Injection Likelihood: Medium · Severity: High
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.