CVE-2012-4540

CVE-2012-4540 is a medium-severity vulnerability in Redhat Icedtea-web with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-189.

Key facts

Description

Off-by-one error in the invoke function in IcedTeaScriptablePluginObject.cc in IcedTea-Web 1.1.x before 1.1.7, 1.2.x before 1.2.2, 1.3.x before 1.3.1, and 1.4.x before 1.4.1 allows remote attackers to obtain sensitive information, cause a denial of service (crash), or possibly execute arbitrary code via a crafted webpage that triggers a heap-based buffer overflow, related to an error message and a "triggering event attached to applet." NOTE: the 1.4.x versions were originally associated with CVE-2013-4349, but that entry has been MERGED with this one.

Frequently asked questions

What is CVE-2012-4540?
Off-by-one error in the invoke function in IcedTeaScriptablePluginObject.cc in IcedTea-Web 1.1.x before 1.1.7, 1.2.x before 1.2.2, 1.3.x before 1.3.1, and 1.4.x before 1.4.1 allows remote attackers to obtain sensitive information, cause a denial of service (crash), or possibly execute arbitrary code via a crafted webpage that triggers a heap-based buffer overflow, related to an error message and a "triggering event attached to applet." NOTE: the 1.4.x versions were originally associated with CVE-2013-4349, but that entry has been MERGED with this one.
How severe is CVE-2012-4540?
CVE-2012-4540 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2012-4540 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-4540?
CVE-2012-4540 primarily affects Redhat Icedtea-web. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-4540?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-4540 published?
CVE-2012-4540 was published on 2012-11-11 and last updated on 2026-06-16.

References

Affected products (12)

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