What is CVE-2017-12109?

CVE-2017-12109 is a high-severity vulnerability in Libxls, classified under Integer Overflow or Wraparound. CVSS score: 8.8/10. Published 2018-04-24.

How severe is CVE-2017-12109?

High severity. CVSS v3 base score is 8.8 out of 10.

Integer overflow in Libxls

CVE-2017-12109

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 attack…

Vulnerability class: Integer Overflow

EPSS: 0.028 (84.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Libxls — versions 1.4 readxl package 1.0.0 for R (tested using Microsoft R 4.3.1)
Libxls_project Libxls — versions 1.4

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2017-12109?: CVE-2017-12109 is a high-severity vulnerability in Libxls, classified under Integer Overflow or Wraparound. CVSS score: 8.8/10. Published 2018-04-24.
How severe is CVE-2017-12109?: High severity. CVSS v3 base score is 8.8 out of 10.