CVE-2014-1493

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 8%CVSS: 9.8Exploit: None knownExposed: 0

A fix is available — apply it.

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.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
52(Track)
EG Risk 52/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation8% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
8%
EPSS %ILE
94%
KEV
Not listed

Published

March 19, 2014

Last Modified

May 6, 2026

Advisory Details (4)

Auto-updated Aug 19, 2026
No patch confirmed yet.
generic

[SECURITY] [DSA 2911-1] icedove security update

http://www.debian.org/security/2014/dsa-2911
generic

[SECURITY] [DSA 2881-1] iceweasel security update

http://www.debian.org/security/2014/dsa-2881
generic
http://rhn.redhat.com/errata/RHSA-2014-0316.html
generic
http://rhn.redhat.com/errata/RHSA-2014-0310.html

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuthunderbird (1:24.4.0+build1-0ubuntu0.13.10.2) @ saucy2026-05-20ubuntu
ubuntufirefox (28.0+build2-0ubuntu0.12.10.1) @ quantal2026-05-20ubuntu
redhatthunderbird-0:24.4.0-1.el6_52014-03-19redhat
redhatfirefox-0:24.4.0-1.el6_52014-03-18redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(2 across 1 ecosystem)
Debian:7(2)
PackageVulnerable rangeFixed inDependents
icedove10.0.12-1 ... 24.3.0-2 (27 versions)24.4.0-1~deb7u1—
iceweasel10.0.12esr-1 ... 24.3.0esr-1~deb7u1 (71 versions)24.4.0esr-1~deb7u2—

All Vendor Advisories

(4)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 6× in last 7d / 18× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 136 total refreshes for this CVE.

  1. 2026-08-21 23:44 UTCEPSS rescore
  2. 2026-08-20 22:50 UTCEPSS rescore
  3. 2026-08-19 16:59 UTCEPSS rescore
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  19. 2026-07-23 01:12 UTCEG score recompute
  20. 2026-07-23 00:15 UTCEG score recompute
  21. 2026-07-22 21:54 UTCEG score recompute
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  22. 2026-06-30 23:19 UTCEPSS rescore
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  47. 2026-06-14 23:14 UTCEPSS rescore
  48. 2026-06-13 22:57 UTCEPSS rescore
  49. 2026-06-12 23:08 UTCEPSS rescore
  50. 2026-06-11 13:56 UTCEPSS rescore
  51. 2026-06-10 22:15 UTCEPSS rescore
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  55. 2026-06-06 13:45 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2014-1493?
CVE-2014-1493 is a critical vulnerability published on March 19, 2014. 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…
When was CVE-2014-1493 disclosed?
CVE-2014-1493 was first published in the National Vulnerability Database on March 19, 2014, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2014-1493 actively exploited?
CVE-2014-1493 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 8% probability of exploitation in the next 30 days, which ranks it in the top 5.6% of all scored CVEs.
What is the CVSS score of CVE-2014-1493?
CVE-2014-1493 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2014-1493?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2014-1493, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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