CVE-2014-1496

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2022-05-13. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 might allow local users to gain privileges by modifying the extracted Mar contents during an update.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
30.4%
KEV
Not listed

Published

March 19, 2014

Last Modified

May 6, 2026

Advisory Details (2)

Auto-updated May 7, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic

Mozilla Products: Multiple vulnerabilities (GLSA 201504-01) — Gentoo security

https://security.gentoo.org/glsa/201504-01
generic🔴 Active Exploitation

925747 - (CVE-2014-1496) Files extracted from Mar file are not locked during update

https://bugzilla.mozilla.org/show_bug.cgi?id=925747

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 40× 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 102 total refreshes for this CVE.

  1. 2026-07-23 01:12 UTCEG score recompute
  2. 2026-07-23 00:15 UTCEG score recompute
  3. 2026-07-22 21:54 UTCEG score recompute
  4. 2026-07-22 14:04 UTCEPSS rescore
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  56. 2026-05-28 19:53 UTCEG score recompute
  57. 2026-05-28 19:53 UTCGHSA enrichment
  58. 2026-05-28 13:42 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2014-1496?
CVE-2014-1496 is a medium vulnerability published on March 19, 2014. Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 might allow local users to gain privileges by modifying the extracted Mar contents during an update.
When was CVE-2014-1496 disclosed?
CVE-2014-1496 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-2014-1496 actively exploited?
CVE-2014-1496 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 30.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2014-1496?
CVE-2014-1496 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2014-1496?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2014-1496, 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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