Is CVE-2015-3043 in the CISA KEV catalog?

Yes. CVE-2015-3043 is on the CISA Known Exploited Vulnerabilities list, added 2022-03-03.

What is the CVSS severity of CVE-2015-3043?

CVE-2015-3043 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2015-3043?

CVE-2015-3043 has an EPSS score of 79.83% (100th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-3043?

Upgrade Clean Flash Player 34.0.0.330 Installer to 11.2.202.457 or later.

CVE & CISA-KEV Catalog

CVE-2015-3043

CRITICALCISA KEVEPSS 100th pctl

9.8

CVSS v3

NVD

Description

Adobe Flash Player before 13.0.0.281 and 14.x through 17.x before 17.0.0.169 on Windows and OS X and before 11.2.202.457 on Linux allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, as exploited in the wild in April 2015, a different vulnerability than CVE-2015-0347, CVE-2015-0350, CVE-2015-0352, CVE-2015-0353, CVE-2015-0354, CVE-2015-0355, CVE-2015-0360, CVE-2015-3038, CVE-2015-3041, and CVE-2015-3042.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

Clean Flash Player 34.0.0.330 InstallerWindows application

Affected:11.2.202.457Fixed in:11.2.202.457

Affected:14.0.0.125 17.0.0.169Fixed in:17.0.0.169

Affected:13.0.0.281Fixed in:13.0.0.281

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

79.83%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Adobe Flash Player Memory Corruption Vulnerability

A memory corruption vulnerability exists in Adobe Flash Player that allows an attacker to perform remote code execution.

The impacted product is end-of-life and should be disconnected if still in use.

Remediation due: 2022-03-24

References

Patch1

helpx.adobe.com

Exploit1

exploit-db.com

Third-Party Advisory8

Government Resource1

cisa.gov

Issue Tracking1

github.com

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

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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 2026-04-21.