Is CVE-2011-3377 in the CISA KEV catalog?

No. CVE-2011-3377 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2011-3377?

CVE-2011-3377 has a CVSS v2 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2011-3377?

CVE-2011-3377 has an EPSS score of 2.22% (80th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2011-3377?

Upgrade icedtea-web on debian 11 to 1.1.4-1 or later.

CVE & CISA-KEV Catalog

CVE-2011-3377

MEDIUMEPSS 80th pctl

4.3

CVSS v2

NVD

Description

The web browser plug-in in IcedTea-Web 1.0.x before 1.0.6 and 1.1.x before 1.1.4 allows remote attackers to bypass the Same Origin Policy (SOP) and execute arbitrary script or establish network connections to unintended hosts via an applet whose origin has the same second-level domain, but a different sub-domain than the targeted domain.

CWE-264Permissions, Privileges, and Access Controls

How to fix

Remediation Available

icedtea-webDebian

Fixed in:1.1.4-1CVE-2011-3377

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

2.22%probability of exploitation in 30 days

80thpercentile

Elevated risk: more likely to be exploited than 80% of all known CVEs.

References

Patch1

dbhole.wordpress.com

Other references7

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.