What’s Vulnerable › Vulnerabilities

CVE-2017-12109

• Severity: high (CVSS 8.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-04-24 · updated 2026-06-17
• Weakness: CWE-190

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.

Affected products

• libxls: 1.4

References

• https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0461
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0461

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