An exploitable heap corruption vulnerability exists in the UnCompressUnicode functionality of Antenna House DMC HTMLFilter used by MarkLogic 8.0-6. A specially crafted xls file can cause a heap corruption resulting in arbitrary code execution. An attacker can send/provide malicious XLS file to trigger this vulnerability.
Severity
CVSS 3.0
7.8 high
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
1.4% chance of exploitation in the next 30 days; higher than 73% of CVEs (scores of 2026-10-31)