Vulnerability in Microsoft Windows 10 1507
CVE-2016-7255
The kernel-mode drivers in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, and 1607, and Windows Server 2016 allow local users to gain privileges via a crafted application, aka "Win32k Elevation of Privilege Vulnerability."
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.810 (99.6th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.810 · newest: 0.810 · change: 0.000
Affected products
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Known ransomware campaign use: yes.
Public proof-of-concept exploits
References
- packetstormsecurity.com/files/140468/Microsoft-Windows-Kernel-win32k.sys-NtSetW… (Exploit, VDB Entry, Third Party Advisory)
- github.com/mwrlabs/CVE-2016-7255 (Exploit, Third Party Advisory)
- www.exploit-db.com/exploits/40823/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- www.exploit-db.com/exploits/41015/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- securingtomorrow.mcafee.com/mcafee-labs/digging-windows-kernel-privilege-escala… (Broken Link)
- www.exploit-db.com/exploits/40745/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- www.securitytracker.com/id/1037251 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-135 (vendor-advisory, Patch, Vendor Advisory)
- blog.trendmicro.com/trendlabs-security-intelligence/one-bit-rule-system-analyzi… (Broken Link)
- www.securityfocus.com/bid/94064 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
Frequently asked questions
- What is CVE-2016-7255?
- CVE-2016-7255 is a high-severity vulnerability in Microsoft Windows 10 1507. CVSS score: 7.8/10. Published 2016-11-10.
- How severe is CVE-2016-7255?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2016-7255 known to be exploited?
- Yes. CVE-2016-7255 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 70 public proof-of-concept repositories are indexed.