Is CVE-2011-2458 in the CISA KEV catalog?

No. CVE-2011-2458 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2011-2458?

CVE-2011-2458 has a CVSS v2 base score of 9.3 (HIGH).

What is the EPSS score for CVE-2011-2458?

CVE-2011-2458 has an EPSS score of 3.60% (88th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2011-2458?

Upgrade Clean Flash Player 34.0.0.330 Installer to 10.3.183.11 or later.

CVE & CISA-KEV Catalog

CVE-2011-2458

HIGHEPSS 88th pctl

9.3

CVSS v2

NVD

Description

Adobe Flash Player before 10.3.183.11 and 11.x before 11.1.102.55 on Windows, Mac OS X, Linux, and Solaris and before 11.1.102.59 on Android, and Adobe AIR before 3.1.0.4880, when Internet Explorer is used, allows remote attackers to bypass the cross-domain policy via a crafted web site.

CWE-264Permissions, Privileges, and Access Controls

How to fix

Remediation Available

Clean Flash Player 34.0.0.330 InstallerWindows application

Affected:10.0 10.3.183.11Fixed in:10.3.183.11

Affected:11.0 11.1.102.55Fixed in:11.1.102.55

Affected:11.0 11.1.102.59Fixed in:11.1.102.59

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

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

3.60%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Patch1

adobe.com

Third-Party Advisory7

Related Vulnerabilities

Other CWE-264 (Permissions, Privileges, and Access Controls) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2012-1456	Medium	4.3	100%	-	-
CVE-2012-1459	Medium	4.3	100%	-	Fix
CVE-2012-1446	Medium	4.3	100%	-	-
CVE-2012-1443	Medium	4.3	100%	-	-
CVE-2012-1442	Medium	4.3	99%	-	-
CVE-2012-1457	Medium	4.3	98%	-	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 2026-04-29.