What is CVE-2018-10193?

CVE-2018-10193 is a high-severity vulnerability in Logmein Lastpass, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2018-04-18.

How severe is CVE-2018-10193?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Logmein Lastpass

CVE-2018-10193

LogMeIn LastPass through 4.15.0 allows remote attackers to cause a denial of service (browser hang) via an HTML document because the resource consumption of onloadwff.js grows with the number of INPUT elements.

Vulnerability class: DoS (Denial of Service)

Published 2018-04-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.047 (91.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.048 · newest: 0.047 · change: -0.001

Affected products

Logmein Lastpass

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

twitter.com/LastPassHelp/status/955478245650071552 (Third Party Advisory, Issue Tracking)
forums.lastpass.com/viewtopic.php (Third Party Advisory, Issue Tracking)
www.youtube.com/watch (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-10193?: CVE-2018-10193 is a high-severity vulnerability in Logmein Lastpass, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2018-04-18.
How severe is CVE-2018-10193?: High severity. CVSS v3 base score is 7.5 out of 10.