title: IBM Observability with Instana code execution
description: IBM Observability with Instana 1.0.243 through 1.0.254 could allow an attacker on the network to execute arbitrary code on the host after a successful DNS poisoning attack.  IBM X-Force ID:  259789.
problem types: 940 Improper Verification of Source of a Communication Channel
affected:
{
defaultStatus: unaffected
product: Observability with Instana
vendor: IBM
versions:
lessThanOrEqual: 1.0.254, status: affected, version: 1.0.243, versionType: semver
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: ADJACENT_NETWORK
availabilityImpact: HIGH
baseScore: 6.4
baseSeverity: MEDIUM
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: HIGH
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
version: 3.1
]
format: CVSS
scenarios: GENERAL