What it is
CVE-2017-0022 is an unauthenticated vulnerability affecting Microsoft Corporation XML Core Services. Microsoft XML Core Services (MSXML) in Windows 10 Gold, 1511, and 1607; Windows 7 SP1; Windows 8.1; Windows RT 8.1;...
Vulnerability report
Exploited in the wild
Confirmed confidence
In CISA KEV
CVE-2017-0022
XML Core Services Information Disclosure
Microsoft Corporation / XML Core Services · XML Core Services (MSXML) in Windows 10 Gold, 1511, and 1607; Windows 7 SP1; Windows 8.1; Windows RT 8.1; Windows Server 2008 SP2 and R2 SP1; Windows Server 2012 Gold and R2; Windows Server 2016; and Windows Vista SP2
- Severity
- CVSS 6.5 · Medium
- Confidence
- Confirmed
- Exploit status
- Exploited in the wild
- EPSS
- 18.1%
- First observed
- —
- Last observed
- —
Decision summary
What security teams need to know first
Direct answers before the deeper technical record.
Is it exploited?
Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is confirmed.
Who is affected?
Microsoft Corporation / XML Core Services xml core services (msxml) in windows 10 gold, 1511, and 1607; windows 7 sp1; windows 8.1; windows rt 8.1; windows server 2008 sp2 and r2 sp1; windows server 2012 gold and r2; windows server 2016; and windows vista sp2.
What should we do?
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
Overview
XML Core Services Information Disclosure
Microsoft XML Core Services (MSXML) in Windows 10 Gold, 1511, and 1607; Windows 7 SP1; Windows 8.1; Windows RT 8.1; Windows Server 2008 SP2 and R2 SP1; Windows Server 2012 Gold and R2; Windows Server 2016; and Windows Vista SP2 improperly handles objects in memory, allowing attackers to test for files on disk via a crafted web site, aka "Microsoft XML Information Disclosure Vulnerability."
Vendor
Product
Affected
Status
Microsoft Corporation
XML Core Services
XML Core Services (MSXML) in Windows 10 Gold, 1511, and 1607; Windows 7 SP1; Windows 8.1; Windows RT 8.1; Windows Server 2008 SP2 and R2 SP1; Windows Server 2012 Gold and R2; Windows Server 2016; and Windows Vista SP2
Affected
- Published
- 17 Mar 2017
- Exploitation Reported
- 24 May 2022
- Attack vector
- Remote
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
Tags
microsoft
windows
cisa
CVE References
- CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2017-0022
- 96069 securityfocus.com · VDB Entry http://www.securityfocus.com/bid/96069
- 1038014 securitytracker.com · VDB Entry http://www.securitytracker.com/id/1038014
- 0patch.blogspot.com/2017/09/exploit-kit-rendezvous-and-cve-2017-... 0patch.blogspot.com · CVE Record https://0patch.blogspot.com/2017/09/exploit-kit-rendezvous-and-cve-20...
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0022 portal.msrc.microsoft.com · CVE Record https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CV...
Exploitation evidence
Why KEV Intelligence marks this CVE as exploited
Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.
Exploited in the wild
CISA
Independent exploitation attestation added to the KEV Intelligence record.
Known exploited vulnerability sources
Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2022-05-24 00:00 UTC |
Detection
Operational artifacts and observed signals
Make the evidence actionable in scanner, SOC, and edge-control workflows.
Observed signals
- Request targets
- 0
- User-Agents
- 0
Raw values available in Pro and Enterprise.
Scanner coverage
No scanner integrations recorded yet.
Virtual patch status
No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.
Learn about virtual patches →No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Risk and context
Severity, weaknesses, and research context
CVSS v3.1
6.5
Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS
18.1%
All CVSS Scores
CVSS v3.1
6.5
Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS v2.0
4.3
Medium
AV:N/AC:M/Au:N/C:P/I:N/A:N
Timeline
From disclosure to observed exploitation
-
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
CVE published
Vulnerability disclosed publicly
-
CVE ID reserved
Identifier reserved by the CNA
Pro API
Automate this intelligence
Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
- Evidence confidence and provenance
- First-party sensor telemetry
- PoC and scanner references
- Affected versions and enrichment
- Automation-ready JSON delivery
GET /api/v2/pro/kevs/CVE-2017-0022
Free JSON includes basic KEV fields{
"cve_id": "CVE-2017-0022",
"confidence": "Confirmed",
"cvss_score": 6.5,
"cvss_estimated": false,
"epss_score": 0.18069,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "attempts": 0, "sensors": 0 }
}Early warning alerts
Get alerts on high-impact exploitation
Receive curator-selected alerts when exploitation activity warrants attention. Each alert includes the evidence and context needed to decide what requires attention now.