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Known exploited vulnerability

CVE-2015-2546

highCVSS 3.1 8.2In CISA KEVRansomwareEPSS 10%Published · n/a

The short answer

CVE-2015-2546 affects n/a n/a and is rated high (CVSS 8.2). CISA added it to the Known Exploited Vulnerabilities catalog on 2022-03-15: attackers are using it, so patch it first. The vendor has linked a patch.

What it is

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.

Weakness: CWE-119.

Severity

8.2 high

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Exploited (CISA KEV)

Yes, since Mar 15, 2022

Federal due date Apr 5, 2022

EPSS, next 30 days

10%

Higher than 96% of scored CVEs

How it can be exploited

Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Changed
Confidentiality impact
High
Integrity impact
High
Availability impact
High

What CISA says to do

Apply updates per vendor instructions.

Affected products

n/a. NVD's record lists the exact affected versions.

References

Questions

Is CVE-2015-2546 being exploited?

Yes. CISA added CVE-2015-2546 to its Known Exploited Vulnerabilities catalog on 2022-03-15, with a federal remediation due date of 2022-04-05. CISA lists it as used in ransomware campaigns.

How do I fix CVE-2015-2546?

CISA's required action: Apply updates per vendor instructions.

From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.

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