What is CVE-2018-18749?

CVE-2018-18749 is a medium-severity vulnerability in Data Tools Project, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2018-10-29.

How severe is CVE-2018-18749?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Integer overflow in Data Tools Project

CVE-2018-18749

data-tools through 2017-07-26 has an Integer Overflow leading to an incorrect end value for the write_wchars function.

Vulnerability class: Integer Overflow

Published 2018-10-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.007 (52.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Data Tools Project

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

github.com/clarkgrubb/data-tools/issues/7 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-18749?: CVE-2018-18749 is a medium-severity vulnerability in Data Tools Project, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2018-10-29.
How severe is CVE-2018-18749?: Medium severity. CVSS v3 base score is 5.5 out of 10.