CVE-2015-1701
Act now ● On CISA KEV — actively exploited used in ransomware
Actively exploited — on the CISA KEV list.
CVSS base
7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
56.2%
99.0th percentile
CISA KEV
Listed
Added 2022-03-03 · patch by 2022-03-24
Weakness / dates
—
Published 2015-04-21 · modified 2026-08-14
CVSS breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
| Attack Vector | L | Local |
| Attack Complexity | L | Low |
| Privileges Required | L | Low |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2015-04-21 — Published (NVD)
- 2022-03-03 — Added to CISA KEV (actively exploited)
- 2022-03-24 — CISA patch-by deadline
- 2026-08-14 — Last modified (NVD)
Description
Win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Vista SP2, and Server 2008 SP2 allows local users to gain privileges via a crafted application, as exploited in the wild in April 2015, aka "Win32k Elevation of Privilege Vulnerability."
Affected
References
- http://seclists.org/fulldisclosure/2020/May/34
- http://twitter.com/symantec/statuses/590208710527549440
- http://www.securityfocus.com/bid/74245
- http://www.securitytracker.com/id/1032155
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-051
- exploit https://www.exploit-db.com/exploits/37049/
- exploit https://www.exploit-db.com/exploits/37367/
- https://www.fireeye.com/blog/threat-research/2015/04/probable_apt28_useo.html
- http://seclists.org/fulldisclosure/2020/May/34
- http://twitter.com/symantec/statuses/590208710527549440
- http://www.securityfocus.com/bid/74245
- http://www.securitytracker.com/id/1032155
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-051
- exploit https://www.exploit-db.com/exploits/37049/
- exploit https://www.exploit-db.com/exploits/37367/
- https://www.fireeye.com/blog/threat-research/2015/04/probable_apt28_useo.html
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-1701