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CVE-2015-1635: Microsoft HTTP.sys Remote Code Execution Vulnerability

criticalknown exploitedpublic exploitCVE-2015-1635
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Microsoft HTTP protocol stack (HTTP.sys) contains a vulnerability that allows for remote code execution.

CSIRTS triage

vendor: Microsoftproduct: HTTP.sysRemote code execution
What
The HTTP protocol stack contains a vulnerability that allows for remote code execution.
Who is affected
Deployments of Microsoft HTTP.sys are affected.
Urgency
Remediation is urgent as the vulnerability is critical and actively exploited.
Action
Apply the latest security updates for HTTP.sys.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-02-10
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2015-1635

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2015-1635coverage & exploitation statusNVD · CVE.org

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