|Date: (C)2008-06-02 (M)2017-08-08|
|CVSS Score: 9.3||Access Vector: NETWORK|
|Exploitability Subscore: 8.6||Access Complexity: MEDIUM|
|Impact Subscore: 10.0||Authentication: NONE|
| ||Confidentiality: COMPLETE|
| ||Integrity: COMPLETE|
| ||Availability: COMPLETE|
Integer underflow in Help Viewer in Apple Mac OS X before 10.5 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted help:topic URL that triggers a buffer overflow.