Threats / Microsoft / CVE-2017-0222
CVE-2017-0222
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Microsoft Internet Explorer vulnerability
Internet Explorer remote code execution vulnerability caused by improper memory object access. Exploited in the wild.
Verdict
Today item — known-exploited.
A memory safety flaw in Internet Explorer allows remote attackers to execute arbitrary code through crafted content. Active exploitation in the wild indicates immediate risk to users running affected versions.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
3 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-02-25).
Probability (EPSS)
EPSS 0.29645 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Microsoft, Internet Explorer. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-119 Memory Buffer Bounds Error — weakness family: Memory safety.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
Craft malicious web content that triggers improper memory object access in Internet Explorer
Business
Users visiting compromised or attacker-controlled websites face immediate code execution risk
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
Execute arbitrary code with the privileges of the Internet Explorer process
Business
Attackers gain ability to steal credentials, install malware, or pivot to internal systems
3
Lateral reach — past segmentation narrative 3
Attacker
Establish persistence or lateral movement within compromised environments
Business
Enterprise networks face data breach, system compromise, and operational disruption
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05