CVE-2017-18256

Brave Browser vulnerability

CVSS

6.5

EPSS

5.1%

EPSS pct

91th

Exploited

No known

Brave Browser before 0.13.0 allows remote attackers to cause a denial of service (resource consumption) via a long alert() argument in JavaScript code, because window dialogs are mishandled.

Affected vendor

Brave

Affected product

Brave Browser

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Published

2018-04-04

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 5.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2017-18256

Confirm whether Brave Brave Browser is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-18256.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-18256

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-18256 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2017-18256?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2017-18256.

Start free scan

No credit card. Agentless.

Related vulnerabilities

MEDIUM

CVE-2012-2612

Netweaver vulnerability

MEDIUM

CVE-2012-2322

Connman vulnerability

MEDIUM

CVE-2012-2904

Jw Player vulnerability