Threats / Microsoft / CVE-2019-0752
CVE-2019-0752
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Microsoft Internet Explorer vulnerability
Remote code execution vulnerability in Internet Explorer's scripting engine memory handling. Exploited in the wild with ransomware campaigns.
Verdict
Today item, not a backlog item.
A memory corruption flaw in Internet Explorer's script processing enables unauthenticated remote code execution. High EPSS score and active exploitation in ransomware operations indicate significant real-world risk.
01
Is it exploitable?
— the evidence, ranked above the scoreExploit available
Public proof-of-concept exploit code is cataloged for this vulnerability.We link the existence of the exploit; we do not host or redistribute payloads.
Reported exploitation
2 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 2022-02-15), flagged for known ransomware use.
Probability (EPSS)
EPSS 0.81551 — 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-843 Type Confusion — 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 webpage or email with specially formatted script to trigger memory corruption in IE scripting engine
Business
User visits compromised or attacker-controlled website, triggering automatic code execution without user interaction
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
Execute arbitrary code with privileges of the browsing user to establish persistence and lateral movement
Business
Attacker gains foothold on corporate network, enabling data exfiltration and further compromise
3
Lateral reach — past segmentation narrative 3
Attacker
Deploy ransomware payload across compromised systems and connected infrastructure
Business
Critical business systems encrypted, operations halted, ransom demanded, regulatory and reputational damage
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