An exploitable Out-of-bounds Write vulnerability exists in the xls_addCell function of libxls 2.0. A specially crafted xls file can cause a memory corruption resulting in remote code execution. An attacker can send malicious xls file to trigger this vulnerability.
Severity
CVSS 3.1
8.8 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
2.2% chance of exploitation in the next 30 days; higher than 82% of CVEs (scores of 2026-10-31)