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Exploited vulnerability · CISA KEV

Is CVE-2014-4113 exploited? Yes: in CISA KEV since 4 May 2022

Gociux · Microsoft Win32k · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2014-4113, Microsoft Win32k Privilege Escalation Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 4 May 2022, 2758 days after it was published. It affects Microsoft Win32k. If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 4 May 2022
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity7.8CVSS 3.1 · high
US federal due25 May 2022BOD 22-01 deadline

What it is

Microsoft Win32k contains an unspecified vulnerability that allows for privilege escalation.

VendorMicrosoft (391 exploited CVEs in KEV)
ProductWin32k
VulnerabilityMicrosoft Win32k Privilege Escalation Vulnerability
WeaknessCWE-264
Published15 Oct 2014
Added to KEV4 May 2022
Reported by (CNA)microsoft

What to do

  1. Check whether you run it. Look for Win32k in your asset inventory, including appliances and cloud images. Stack check lists every exploited Microsoft CVE at once.
  2. Apply the fix. Apply updates per vendor instructions.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 15 Oct 2014.
  4. Get told next time. Email alerts when CISA adds a CVE for Microsoft.

Other exploited CVEs in Win32k

References

Questions

Is CVE-2014-4113 being exploited?

Yes. CISA added CVE-2014-4113 to the Known Exploited Vulnerabilities catalog on 4 May 2022, which means there is reliable evidence of exploitation in the wild.

Is CVE-2014-4113 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2014-4113?

Apply updates per vendor instructions. Check Microsoft's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Win32k and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in May 2022 · Microsoft scorecard · act-now radar.

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