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CVE-2014-1493

Critical Vulnerability: CVE-2014-1493 โ€” mozilla, canonical โ€” firefox, seamonkey

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

Thursday, May 14, 2026mozilla, canonicalVulnios Threat Intelligence
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Vulnerability Snapshot

CVE-2014-1493 is rated CRITICAL โ€” exploitation is trivial or already observed in the wild and impact is severe. Patch immediately, not on the next maintenance window.

Affected technology: firefox, seamonkey, thunderbird, ubuntu_linux, debian_linux, plus 5 other product variants.

Executive Summary

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

Why It Matters

CVE-2014-1493 is rated CRITICAL severity, requiring immediate attention from security teams.

CVSS Base Score: 9.8/10

Affected Technologies

Vendors: mozilla, canonical, debian, redhat, suse, opensuse

Products: firefox, seamonkey, thunderbird, ubuntu_linux, debian_linux, enterprise_linux_desktop, enterprise_linux_eus, enterprise_linux_server, enterprise_linux_server_aus, enterprise_linux_server_eus, enterprise_linux_server_tus, enterprise_linux_workstation, suse_linux_enterprise_software_development_kit, opensuse, suse_linux_enterprise_desktop, suse_linux_enterprise_server

๐Ÿ›ก๏ธWhat Defenders Should Check

  • Check if you are affected โ€” Review your asset inventory for products listed in CVE-2014-1493.
  • Apply available patches โ€” Visit vendor advisories for the latest security updates.
  • Monitor for exploitation โ€” Check your SIEM/IDS logs for related indicators.
  • Use Vulnios to continuously monitor your exposure to CVE-2014-1493 and similar vulnerabilities.

    References & Sources

    How Vulnios Detects This

    Vulnios scans for this vulnerability using Trivy and Grype for CVE matching against your container images and OS package manifests. Run a scan against your environment to see whether you are exposed; findings are linked back to the original CVE record so triage starts with the patch path already known.

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    Affected Products

    firefoxseamonkeythunderbirdubuntu_linuxdebian_linuxenterprise_linux_desktopenterprise_linux_eusenterprise_linux_serverenterprise_linux_server_ausenterprise_linux_server_eus

    Sources

    Related Threat Alerts

    Frequently Asked Questions

    What is CVE-2014-1493?

    CVE-2014-1493 is a critical-severity vulnerability tracked under the Common Vulnerabilities and Exposures program. Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 allow remote attackers to ca

    Am I affected?

    Check whether your environment runs firefox, seamonkey, thunderbird, ubuntu_linux, debian_linux. If you operate any of those, treat yourself as in scope until you have evidence otherwise. A Vulnios scan will identify the exact assets carrying the affected version.

    How urgent is the response?

    Critical: do not wait for your normal patch cycle. Verify exposure today, apply the vendor patch immediately, and add detection rules for any post-exploit indicators.

    How do I remediate?

    Apply the vendor patch listed in the upstream advisory linked under Sources. If the patch is not yet available, follow the vendor-supplied workaround (often a config flag or feature disable) and add detections for the published exploit pattern in your SIEM. Re-scan after the patch lands to confirm the finding clears.

    Where can I track exploitation activity?

    Watch CISA's Known Exploited Vulnerabilities catalog for CVE-2014-1493. Cross-reference with public exploit databases and your own SIEM/IDS for indicator-of-compromise patterns. Vulnios tracks KEV status automatically and surfaces it on the asset findings view.

    How does Vulnios help with this?

    Vulnios continuously cross-references your asset inventory against the live CVE feed (NVD, vendor advisories, CISA KEV, and curated OSINT). When a new CVE matches your environment, you get a prioritized finding with the severity, KEV status, exploit-prediction (EPSS), and a direct path to the vendor patch. You can start a free scan from the homepage.

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