What is CVE-2015-2419?

CVE-2015-2419 is a high-severity vulnerability in Microsoft Internet Explorer, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2015-07-14.

How severe is CVE-2015-2419?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2015-2419 known to be exploited?

Yes. CVE-2015-2419 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-28), indicating it is being actively exploited. 5 public proof-of-concept repositories are indexed.

Buffer overflow in Microsoft Internet Explorer

CVE-2015-2419

JScript 9 in Microsoft Internet Explorer 10 and 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "JScript9 Memory Corruption Vulnerability."

Vulnerability class: Buffer Overflow

Published 2015-07-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.531 (99.0th percentile), scored 2026-10-18.

High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.531 · newest: 0.531 · change: 0.000

Affected products

Microsoft Internet Explorer — versions 10, 11
Microsoft Windows 7
Microsoft Windows 8
Microsoft Windows 8.1
Microsoft Windows Rt
Microsoft Windows Rt 8.1
Microsoft Windows Server 2008 — versions r2
Microsoft Windows Server 2012 — versions r2

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-03-28. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-04-18.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

www.securitytracker.com/id/1032894 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-065 (vendor-advisory, Patch, Vendor Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2015-2419?: CVE-2015-2419 is a high-severity vulnerability in Microsoft Internet Explorer, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2015-07-14.
How severe is CVE-2015-2419?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2015-2419 known to be exploited?: Yes. CVE-2015-2419 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-28), indicating it is being actively exploited. 5 public proof-of-concept repositories are indexed.