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CVE-2017-0022: Microsoft XML Core Services Information Disclosure Vulnerability

criticalknown exploitedCVE-2017-0022
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 XML Core Services (MSXML) improperly handles objects in memory, allowing attackers to test for files on disk via a crafted web site.

CSIRTS triage

vendor: Microsoftproduct: XML Core ServicesInformation disclosure
What
Microsoft XML Core Services (MSXML) improperly handles objects in memory, allowing attackers to test for files on disk via a crafted web site.
Who is affected
Deployments of Microsoft XML Core Services are affected.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Apply the latest security patch for XML Core Services.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-05-24
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2017-0022

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-2017-0022coverage & exploitation statusNVD · CVE.org

Recent advisories for Microsoft XML Core

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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