CVE-2018-18510

Severity: medium (CVSS 6.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-04-26 · updated 2026-06-17

Description

The about:crashcontent and about:crashparent pages can be triggered by web content. These pages are used to crash the loaded page or the browser for test purposes. This issue allows for a non-persistent denial of service (DOS) attack by a malicious site which links to these pages. This vulnerability affects Firefox < 64.

Affected products

Mozilla Firefox: before 64.0 — fixed in 64.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 64.0. Check the vendor advisory for mitigations.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1507702
https://www.mozilla.org/security/advisories/mfsa2018-29/
https://bugzilla.mozilla.org/show_bug.cgi?id=1507702
https://www.mozilla.org/security/advisories/mfsa2018-29/

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