Is CVE-2015-2419 in the CISA KEV catalog?

Yes. CVE-2015-2419 is on the CISA Known Exploited Vulnerabilities list, added 2022-03-28.

What is the CVSS severity of CVE-2015-2419?

CVE-2015-2419 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2015-2419?

CVE-2015-2419 has an EPSS score of 44.54% (99th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2015-2419

HIGHCISA KEVEPSS 99th pctl

8.8

CVSS v3

NVD

Description

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."

CWE-787Out-of-bounds Write

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

44.54%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Microsoft Internet Explorer Memory Corruption Vulnerability

JScript in Microsoft Internet Explorer allows remote attackers to execute remote code or cause a denial of service (memory corruption) via a crafted web site.

Apply updates per vendor instructions.

Remediation due: 2022-04-18

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-22.