What’s Vulnerable › Vulnerabilities

CVE-2019-25136

• Severity: critical (CVSS 10.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-06-19 · updated 2026-06-17

Description

A compromised child process could have injected XBL Bindings into privileged CSS rules, resulting in arbitrary code execution and a sandbox escape. This vulnerability affects Firefox < 70.

Affected products

• Mozilla Firefox: before 70.0 — fixed in 70.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 70.0. Check the vendor advisory for mitigations.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1530709
• https://www.mozilla.org/security/advisories/mfsa2019-34/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1530709
• https://www.mozilla.org/security/advisories/mfsa2019-34/

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