Vulnerability in Microsoft Edge

CVE-2016-3387

Microsoft Internet Explorer 10 and 11 and Microsoft Edge do not properly restrict access to private namespaces, which allows remote attackers to gain privileges via unspecified vectors, aka "Microsoft Browser Elevation of Privilege Vulnerability," a different vulnerability than CVE-2016-3388.

EPSS: 0.199 (97.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2016-3387?
CVE-2016-3387 is a high-severity vulnerability in Microsoft Edge, classified under CWE-264. CVSS score: 7.5/10. Published 2016-10-14.
How severe is CVE-2016-3387?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2016-3387 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.