CVE-2017-12109

Name: CVE-2017-12109
Creator: NVD / NIST
Published: 2018-04-24T19:29:01.5+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.77%

Last modified Jun 17, 2026

CVE-2017-12109 is a vulnerability of currently unknown severity. 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. EPSS estimates a 2.77% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

2.77%

84.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

Affected Software

Vendor	Product	Versions
Libxls Project	Libxls	1.4

References

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

Timeline

Published: Apr 24, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-12109?

How severe is CVE-2017-12109?

Severity scoring for CVE-2017-12109 is pending analysis. The EPSS model estimates a 2.77% probability of exploitation in the next 30 days.

How do I fix CVE-2017-12109?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-12109?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST