SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2011-3377

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…

MEDIUM 4.3EPSS 2.22%

Does this matter?

Lower severity and a low EPSS score (2.22%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 2.0
4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N
EPSS
2.22% probability · 83th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-264
Affected
redhat/icedtea-web · canonical/ubuntu linux · opensuse/opensuse
Source
secalert@redhat.com
EPSS trend
0%3%5%26 October 2026: 2.22%26 October 202626 October 2026

EPSS 2.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.