Vulnerability in Mozilla Firefox

CVE-2016-1966

The nsNPObjWrapper::GetNewOrUsed function in dom/plugins/base/nsJSNPRuntime.cpp in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7 allows remote attackers to execute arbitrary code or cause a denial of service (invalid pointer dereference and memory corruption) via a crafted NPAPI plugin.

EPSS: 0.029 (85.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

References

Frequently asked questions

What is CVE-2016-1966?
CVE-2016-1966 is a high-severity vulnerability in Mozilla Firefox. CVSS score: 8.8/10. Published 2016-03-13.
How severe is CVE-2016-1966?
High severity. CVSS v3 base score is 8.8 out of 10.