What is CVE-2016-9075?

CVE-2016-9075 is a critical-severity vulnerability in Mozilla Firefox, classified under CWE-264. CVSS score: 9.8/10. Published 2018-06-11.

How severe is CVE-2016-9075?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Mozilla Firefox

CVE-2016-9075

An issue where WebExtensions can use the mozAddonManager API to elevate privilege due to privileged pages being allowed in the permissions list. This allows a malicious extension to then install additional extensions without explicit user permission. This vulnerability affects Firefox < 50.

EPSS: 0.022 (80.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Mozilla Firefox — versions unspecified

Weakness classification (CWE)

CWE-264

References

security@mozilla.org (x_refsource_CONFIRM, Issue Tracking, Vendor Advisory)
security@mozilla.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
security@mozilla.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
security@mozilla.org (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2016-9075?: CVE-2016-9075 is a critical-severity vulnerability in Mozilla Firefox, classified under CWE-264. CVSS score: 9.8/10. Published 2018-06-11.
How severe is CVE-2016-9075?: Critical severity. CVSS v3 base score is 9.8 out of 10.