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CVE-2017-12109

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

High8.8EPSS 2.7%
Published
Updated
Reserved
Assigned by
talos

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.

Scores

CVSS scores of CVE-2017-12109, by who scored it
Scored byCVSSScoreVector
talosCNA (assigner)3.0High8.8CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVDNVD · Modified3.0High8.8CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
2.7% · top 14% of all CVEs (5 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.

Weakness

Affected products

  • libxls · libxls

    • affected 1.4 readxl package 1.0.0 for R (tested using Microsoft R 4.3.1)

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .