CVE-2017-12109

HIGH

libxls - Remote Code Execution via MULRK Record Integer Overflow

Title source: llm
STIX 2.1

Description

An exploitable integer overflow vulnerability exists in the xls_preparseWorkSheet function of libxls 1.4 when handling a MULRK record. 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.

References (1)

Core 1
Core References
Exploit, Third Party Advisory x_refsource_misc
https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0461

Scores

CVSS v3 8.8
EPSS 0.0277
EPSS Percentile 84.5%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-190
Status published
Products (1)
libxls_project/libxls 1.4
Published Apr 24, 2018
Tracked Since Feb 18, 2026