What’s Vulnerable › Vulnerabilities

CVE-2018-5179

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-04-26 · updated 2026-06-17
• Weakness: CWE-772

Description

A service worker can send the activate event on itself periodically which allows it to run perpetually, allowing it to monitor activity by users. Affects all versions prior to Firefox 60.

Affected products

• Mozilla Firefox: before 60.0 — fixed in 60.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 60.0. Check the vendor advisory for mitigations.

References

• https://www.mozilla.org/en-US/security/advisories/mfsa2018-11/
• https://www.mozilla.org/en-US/security/advisories/mfsa2018-11/

Get alerted when CVE-2018-5179 or the next vulnerability affects your stack