CVE-2012-3423: n/a vulnerability

CVE-2012-3423: The IcedTea-Web plugin before 1.2.1 does not properly handle NPVariant NPStrings without NUL terminators, w...

The IcedTea-Web plugin before 1.2.1 does not properly handle NPVariant NPStrings without NUL terminators, which allows remote attackers to cause a denial of service (crash), obtain sensitive information from memory, or execute arbitrary code via a crafted Java applet.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 20:05 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2012-3423 is a legacy browser plugin flaw in IcedTea-Web before 1.2.1. A malicious Java applet could crash the plugin, read memory, or potentially run arbitrary code. Business urgency depends on whether any endpoints still allow Java applets through this old plugin. Exposure is most likely on legacy systems with the IcedTea-Web browser plugin installed and enabled, especially versions before 1.2.1. The source bundle includes Linux distribution advisories from Ubuntu, SUSE/openSUSE, Red Hat, and Gentoo, indicating packaged downstream exposure. Prioritize if legacy desktop environments still support Java applets. For modern environments without browser Java plugin use, urgency is lower, but stale endpoint images and unmanaged Linux workstations should be checked. Mitigation focus: Upgrade IcedTea-Web to 1.2.1 or a vendor-fixed distribution package.; Remove or disable the browser Java plugin where applets are not required.; Apply relevant Ubuntu, SUSE/openSUSE, Red Hat, or Gentoo security updates..

Prepared: Jun 27, 2026, 17:28 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Aug 7, 2012, 21:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

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Source materials

CVE List V5 sourceCVE List V5
https://bugzilla.redhat.com/show_bug.cgi?id=841345CVE reference · x_refsource_MISC

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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