CVE-2012-4215: n/a vulnerability

CVE-2012-4215: Use-after-free vulnerability in the nsPlaintextEditor::FireClipboardEvent function in Mozilla Firefox befor...

Use-after-free vulnerability in the nsPlaintextEditor::FireClipboardEvent function in Mozilla Firefox before 17.0, Firefox ESR 10.x before 10.0.11, Thunderbird before 17.0, Thunderbird ESR 10.x before 10.0.11, and SeaMonkey before 2.14 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 20:28 UTC (UTC+00:00)

Security readout for executives and security teams

This is an older Mozilla memory-safety flaw that could let a remote attacker crash the application or run code in the user’s context. The affected software is legacy Firefox, Thunderbird, Firefox ESR, Thunderbird ESR, and SeaMonkey releases from before the fixed versions listed in the CVE description. Exposure is mainly legacy desktop or server-managed environments still running obsolete Mozilla browser or mail-client packages, including distribution-packaged builds referenced by Ubuntu, Red Hat, and SUSE advisories. Modern supported versions should not be assumed affected from the supplied evidence. Treat this as a legacy exposure cleanup item with high impact if found. It does not indicate current active exploitation in the supplied evidence, but affected clients process remote content and could expose user workstations to code execution risk. Mitigation focus: Upgrade affected Mozilla products to the fixed versions or later.; Apply relevant Linux distribution security updates for packaged Mozilla builds.; Retire or isolate systems that cannot update obsolete browser or mail clients..

Prepared: Jun 24, 2026, 12:04 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

Conservative CVE-to-ATT&CK context

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description · low confidence lookup

Execution behavior lookup

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CVE-2012-4215 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Nov 21, 2012, 11:00 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

4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
oval:org.mitre.oval:def:16690CVE reference · vdb-entry, signature
firefox-fireclipboard-code-exec(80188)CVE reference · vdb-entry, x_refsource_XF
https://bugzilla.mozilla.org/show_bug.cgi?id=798677CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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