Unknown · Watsonwebserver · CVE-2021-33318
**Name of the Vulnerable Software and Affected Versions**
WatsonWebserver versions 4.1.3 and below
IpMatcher versions 1.0.4.1 and below
**Description**
An Input Validation issue exists due to insufficient validation of input IP addresses and netmasks against the internal Matcher list of IP addresses and subnets.
**Recommendations**
For WatsonWebserver versions 4.1.3 and below, update to a version above 4.1.3 to resolve the issue.
For IpMatcher versions 1.0.4.1 and below, update to a version above 1.0.4.1 to resolve the issue.
As a temporary workaround, consider restricting the input of IP addresses and netmasks to minimize the risk of exploitation.