How severe is CVE-2019-0752?

CVE-2019-0752 has a CVSS score of 7.5/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2019-0752?

Affected package information for CVE-2019-0752 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2019-0752?

No fixed version has been published for CVE-2019-0752 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2019-0752 actively exploited in the wild?

Yes. There are 6 known exploit references for CVE-2019-0752, including 1 documented proof-of-concept exploit on Exploit-DB and 5 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2019-0752?

CVE-2019-0752 has an EPSS (Exploit Prediction Scoring System) score of 91.5%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is CVE-2019-0752 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2019-0752 (Microsoft Internet Explorer Type Confusion Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2022-02-15. CISA required all US federal civilian agencies to remediate this vulnerability by 2022-08-15. The required action was: Apply updates per vendor instructions. This CVE has been used in known ransomware campaigns. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2019-0752?

CVE-2019-0752 is classified as CWE-843 (CWE-843). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Which products and versions are affected by CVE-2019-0752?

CVE-2019-0752 affects microsoft internet explorer (2 versions, e.g. 10, 11). Check the affected-products list on this page against your deployed version to confirm exposure.

When was CVE-2019-0752 published, and has it been updated?

CVE-2019-0752 was published on April 9, 2019 and was last updated on October 29, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2022-02-15 — agencies required to remediate by 2022-08-15 · Ransomware

CVE-2019-0752

HIGH

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka 'Scripting Engine Memory Corruption Vulnerability'.…

Published

Apr 9, 2019

Updated

Oct 29, 2025

Affected

0 pkgs

Patched

None yet

Exploits

6 known

EPSS Exploitation Probability

via FIRST.org ↗

91.5%probability of exploitation in next 30 days

Very High Risk100th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Description

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-0739, CVE-2019-0753, CVE-2019-0862.

Affected Products

1 product · 2 configurations

Application

internet explorermicrosoft

2 versions

1011

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-46928remotewindows

Microsoft Internet Explorer Windows 10 1809 17763.316 - Scripting Engine Memory Corruption

by Simon Zuckerbraun · May 24, 2019

Exploit-DB Source

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2019-0752 in your stack?

O3 detects CVE-2019-0752 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my stack How O3 SCA works

CVSS Score

7.5/10

CVSS v3 base score

Vector breakdown

AV:Attack Vector

Network

AC:Attack Complexity

High

PR:Privileges Required

None

UI:User Interaction

Required

S:Scope

Unchanged

C:Confidentiality

High

I:Integrity

High

A:Availability

High

Raw vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE Classification

CWE-843CWE-843

Weaponization

No known public exploit tooling found.

Timeline

Disclosed

Apr 9, 2019

First exploit

May 24, 2019

KEV added

Feb 15, 2022

Last updated

Oct 29, 2025

Identifiers

CVE-2019-0752

References

Advisoryzerodayinitiative.com Advisoryzerodayinitiative.com Fixportal.msrc.microsoft.com Fixportal.msrc.microsoft.com Exploit / PoCpacketstormsecurity.com Exploit / PoCpacketstormsecurity.com Webcisa.gov

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