CVE-2015-2546
CVE-2015-2546 is a high-severity vulnerability in Microsoft Windows 10 1507 with a CVSS 3.x base score of 8.2. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-03-15). The underlying weakness is classified as CWE-119.
Key facts
- Severity: High (CVSS 3.x base score 8.2)
- CVSS v2: 6.9
- EPSS exploit prediction: 11% (95th percentile)
- Actively exploited: Yes — listed in CISA KEV (added 2022-03-15)
- EU (EUVD) id: EUVD-2015-2639
- EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2022-03-15)
- Weakness: CWE-119
- Affected product: Microsoft Windows 10 1507
- Published:
- Last modified:
Description
The kernel-mode driver in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 allows local users to gain privileges via a crafted application, aka "Win32k Memory Corruption Elevation of Privilege Vulnerability," a different vulnerability than CVE-2015-2511, CVE-2015-2517, and CVE-2015-2518.
Frequently asked questions
- What is CVE-2015-2546?
- The kernel-mode driver in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 allows local users to gain privileges via a crafted application, aka "Win32k Memory Corruption Elevation of Privilege Vulnerability," a different vulnerability than CVE-2015-2511, CVE-2015-2517, and CVE-2015-2518.
- How severe is CVE-2015-2546?
- CVE-2015-2546 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2015-2546 being actively exploited?
- Yes. CVE-2015-2546 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-03-15, which means active exploitation has been confirmed. It should be prioritised for remediation.
- What products are affected by CVE-2015-2546?
- CVE-2015-2546 primarily affects Microsoft Windows 10 1507. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2015-2546?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
- Does CVE-2015-2546 have an EU (EUVD) identifier?
- Yes. CVE-2015-2546 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2015-2639. It is also flagged as exploited in the EUVD (since 2022-03-15).
- When was CVE-2015-2546 published?
- CVE-2015-2546 was published on 2015-09-09 and last updated on 2026-06-17.
References
- http://www.securityfocus.com/bid/76608
- http://www.securitytracker.com/id/1033485
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-097
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-2546
Affected products (12)
- cpe:2.3:o:microsoft:windows_10_1507:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_8:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_rt:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:itanium:*
- cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
- cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:*:*
More vulnerabilities in Microsoft Windows 10 1507
- CVE-2025-53766 — Critical (CVSS 9.8): Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a network.
- CVE-2025-47981 — Critical (CVSS 9.8): Heap-based buffer overflow in Windows SPNEGO Extended Negotiation allows an unauthorized attacker to execute code over…
- CVE-2025-21307 — Critical (CVSS 9.8): Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
- CVE-2025-21298 — Critical (CVSS 9.8): Windows OLE Remote Code Execution Vulnerability
- CVE-2024-49112 — Critical (CVSS 9.8): Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability
- CVE-2024-43491 — Critical (CVSS 9.8): Microsoft is aware of a vulnerability in Servicing Stack that has rolled back the fixes for some vulnerabilities…
All CVEs affecting Microsoft Windows 10 1507 →
Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities
- CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
- CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
- CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
- CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
- CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
- CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.