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…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 19.9%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 19.93% probability · 97th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 20 October 2016
- CISA KEV
- Not listed
- Weakness
- CWE-264
- Affected
- microsoft/edge · microsoft/internet explorer
- Source
- secure@microsoft.com
EPSS moved from 17.8% on 21 September 2026 to 19.9% on 4 November 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://www.securityfocus.com/bid/93381
- http://www.securitytracker.com/id/1036992
- http://www.securitytracker.com/id/1036993
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-118
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-119
- https://www.exploit-db.com/exploits/40607/
- http://www.securityfocus.com/bid/93381
- http://www.securitytracker.com/id/1036992
- http://www.securitytracker.com/id/1036993
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-118
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-119
- https://www.exploit-db.com/exploits/40607/
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.