CVE-2014-1511

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
Weaponized
9.8EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 84%
  • Public exploit code is available (Metasploit, Exploit-DB (verified), epss top5pct, epss high, public exploit)
CISA-KEV: Not listedEPSS PROB: 84%CVSS: 9.8Exploit: Metasploit · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed services: Not assessed

A fix is available — apply it.

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 bypass the popup blocker via unspecified vectors.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
82
EG Risk 82/100CISA SSVC

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%
Exploitation84% × 40%
Automatability30% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
84%
EPSS %ILE
99th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (EG-KEV: weaponized) · Automatable unknown (not published for this CVE) · Technical impact total (CVSS ≥ 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

March 19, 2014

Last Modified

May 6, 2026

Advisory Details (4)

Auto-updated Oct 1, 2026
Patch available.
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 / EcosystemFix (by version range) / PatchReleasedSource
ubuntuthunderbird (1:24.4.0+build1-0ubuntu0.13.10.2) @ saucy2026-05-20ubuntu
ubuntufirefox (28.0+build2-0ubuntu0.13.10.1) @ saucy2026-05-20ubuntu
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 rangeFix by version rangeDependents
icedove10.0.12-1 ... 24.3.0-2 (27 versions)
  • every version up to 24.4.0-1~deb7u1: fixed in 24.4.0-1~deb7u1
—
iceweasel10.0.12esr-1 ... 24.3.0esr-1~deb7u1 (71 versions)
  • every version up to 24.4.0esr-1~deb7u2: fixed in 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 2× in last 7d / 6× 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.

  1. 2026-09-30 14:58 UTCEPSS rescore
  2. 2026-09-30 00:20 UTCEG score recompute
  3. 2026-09-28 13:45 UTCEPSS rescore
  4. 2026-09-26 15:53 UTCEPSS rescore
  5. 2026-09-21 20:25 UTCEPSS rescore
  6. 2026-09-18 19:21 UTCEPSS rescore
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  18. 2026-07-30 01:26 UTCEPSS rescore
  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
  22. 2026-07-22 14:04 UTCEPSS rescore
  23. 2026-07-21 15:21 UTCEPSS rescore
  24. 2026-07-21 15:21 UTCEPSS rescore
  25. 2026-07-19 14:27 UTCEPSS rescore
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  1. 2026-07-19 14:27 UTCEPSS rescore
  2. 2026-07-15 16:54 UTCEPSS rescore
  3. 2026-07-15 16:54 UTCEPSS rescore
  4. 2026-07-13 06:08 UTCEPSS rescore
  5. 2026-07-09 19:05 UTCEPSS rescore
  6. 2026-07-04 06:27 UTCEPSS rescore
  7. 2026-07-01 15:02 UTCEPSS rescore
  8. 2026-06-29 14:02 UTCEPSS rescore
  9. 2026-06-28 14:03 UTCEPSS rescore
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  16. 2026-06-21 14:53 UTCEPSS rescore
  17. 2026-06-18 17:49 UTCEPSS rescore
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  22. 2026-06-14 23:14 UTCEPSS rescore
  23. 2026-06-13 22:57 UTCEPSS rescore
  24. 2026-06-12 23:08 UTCEPSS rescore
  25. 2026-06-11 13:56 UTCEPSS rescore
  26. 2026-06-10 22:15 UTCEPSS rescore
  27. 2026-06-08 14:14 UTCEPSS rescore
  28. 2026-06-06 13:45 UTCEPSS rescore
  29. 2026-06-06 13:45 UTCEPSS rescore
  30. 2026-06-05 22:44 UTCEPSS rescore
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  36. 2026-06-01 13:49 UTCEPSS rescore
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  38. 2026-05-31 00:14 UTCEPSS rescore
  39. 2026-05-31 00:14 UTCEPSS rescore
  40. 2026-05-29 13:41 UTCEPSS rescore
  41. 2026-05-29 13:41 UTCEPSS rescore
  42. 2026-05-27 13:38 UTCEPSS rescore
  43. 2026-05-27 13:38 UTCEPSS rescore
  44. 2026-05-22 21:15 UTCEPSS rescore
  45. 2026-05-22 21:15 UTCEPSS rescore
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  47. 2026-05-21 22:39 UTCEPSS rescore
  48. 2026-05-20 22:37 UTCEPSS rescore
  49. 2026-05-20 22:37 UTCEPSS rescore
  50. 2026-05-20 10:25 UTCVendor advisory
  51. 2026-05-20 10:25 UTCGHSA enrichment
  52. 2026-05-20 06:44 UTCVendor advisory
  53. 2026-05-20 06:44 UTCGHSA enrichment
  54. 2026-05-20 03:04 UTCVendor advisory
  55. 2026-05-20 03:04 UTCGHSA enrichment
  56. 2026-05-19 23:23 UTCVendor advisory
  57. 2026-05-19 23:23 UTCGHSA enrichment
  58. 2026-05-19 19:41 UTCVendor advisory
  59. 2026-05-19 19:41 UTCGHSA enrichment
  60. 2026-05-19 16:00 UTCVendor advisory
  61. 2026-05-19 16:00 UTCGHSA enrichment
  62. 2026-05-19 12:07 UTCVendor advisory
  63. 2026-05-19 12:07 UTCGHSA enrichment
  64. 2026-05-19 08:13 UTCVendor advisory
  65. 2026-05-19 08:13 UTCGHSA enrichment
  66. 2026-05-19 04:32 UTCVendor advisory
  67. 2026-05-19 04:32 UTCGHSA enrichment
  68. 2026-05-19 00:51 UTCEG score recompute
  69. 2026-05-19 00:51 UTCVendor advisory
  70. 2026-05-19 00:51 UTCGHSA enrichment
  71. 2026-05-18 21:29 UTCEPSS rescore
  72. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 Metasploit module) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-34448✓ verified
    First seen Aug 28, 2014

    Mozilla Firefox - WebIDL Privileged JavaScript Injection (Metasploit)

    Open source ↗
  • Metasploitexploit/multi/browser/firefox_webidl_injection✓ verified
    First seen Mar 17, 2014

    Firefox WebIDL Privileged Javascript Injection

    Open source ↗

Related CVEs(same product + same vendor)

Frequently asked(5)

What is CVE-2014-1511?
CVE-2014-1511 is a critical 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 allow remote attackers to bypass the popup blocker via unspecified vectors.
When was CVE-2014-1511 disclosed?
CVE-2014-1511 was first published 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-2014-1511 actively exploited?
CVE-2014-1511 is not currently on CISA's Known Exploited Vulnerabilities catalog. EchelonGraph's EG-KEV model classifies it as weaponized: a functional public exploit exists. FIRST EPSS estimates a 84% probability of exploitation in the next 30 days (99th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2014-1511?
CVE-2014-1511 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2014-1511?
A fix for CVE-2014-1511 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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