CVE-2014-1511

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

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, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this weekWeaponized

Also known asEUVD-2014-1587 (ENISA EUVD) · GHSA-hc98-gcpm-mq7j (GitHub Security Advisories)Source: ENISA EUVD

9.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High exploitation likelihood — EPSS 84%
  • Public exploit code is available (Metasploit, Exploit-DB, marked verified by Exploit-DB)
CISA-KEV: Not listedEPSS PROB: 84%CVSS: 9.8Exploit: Metasploit · Exploit-DB (verified)Exposed 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
78
EG Risk 78/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation84% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
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

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
84% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track 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 (exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

March 19, 2014

Last Modified

May 6, 2026

Advisory Details (4)

Auto-updated Oct 8, 2026
Patch available.
Web page

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

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

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

http://www.debian.org/security/2014/dsa-2881

Patch Availability(4)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntuthunderbird (1:24.4.0+build1-0ubuntu0.13.10.2) @ saucy2026-11-02ubuntu
ubuntufirefox (28.0+build2-0ubuntu0.13.10.1) @ saucy2026-11-02ubuntu
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
—

Weakness Classification(1)

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

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 24× in last 7d / 75× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 99 of 171 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 72 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 06:08 UTCEG score recompute
  2. 2026-11-02 06:08 UTCVendor advisory
  3. 2026-11-02 06:08 UTCGHSA enrichmentGHSA-hc98-gcpm-mq7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  4. 2026-11-01 06:19 UTCEG score recompute
  5. 2026-11-01 06:19 UTCVendor advisory
  6. 2026-11-01 06:19 UTCGHSA enrichmentGHSA-hc98-gcpm-mq7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  7. 2026-10-31 06:31 UTCEG score recompute
  8. 2026-10-31 06:31 UTCVendor advisory
  9. 2026-10-31 06:31 UTCGHSA enrichmentGHSA-hc98-gcpm-mq7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  10. 2026-10-30 16:27 UTCEPSS rescoreEPSS 84% · 99th percentile
  11. 2026-10-30 06:44 UTCEG score recompute
  12. 2026-10-30 06:44 UTCVendor advisory
  13. 2026-10-30 06:44 UTCGHSA enrichmentGHSA-hc98-gcpm-mq7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  14. 2026-10-29 16:27 UTCEPSS rescoreEPSS 84% · 99th percentile
  15. 2026-10-29 06:57 UTCEG score recompute
  16. 2026-10-29 06:57 UTCVendor advisory
  17. 2026-10-29 06:57 UTCGHSA enrichmentGHSA-hc98-gcpm-mq7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  18. 2026-10-28 07:11 UTCEG score recompute
  19. 2026-10-28 07:11 UTCVendor advisory
  20. 2026-10-28 07:11 UTCGHSA enrichmentGHSA-hc98-gcpm-mq7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  21. 2026-10-27 16:26 UTCEPSS rescoreEPSS 84% · 99th percentile
  22. 2026-10-27 07:24 UTCEG score recompute
  23. 2026-10-27 07:24 UTCVendor advisory
  24. 2026-10-27 07:23 UTCGHSA enrichmentGHSA-hc98-gcpm-mq7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  25. 2026-10-26 04:41 UTCVendor advisory
Show 74 more
  1. 2026-10-26 04:41 UTCGHSA enrichmentGHSA-hc98-gcpm-mq7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  2. 2026-10-25 20:04 UTCEG score recompute
  3. 2026-10-25 16:26 UTCEPSS rescoreEPSS 84% · 99th percentile
  4. 2026-10-25 04:54 UTCEG score recompute
  5. 2026-10-25 04:54 UTCVendor advisory
  6. 2026-10-25 04:54 UTCGHSA enrichmentGHSA-hc98-gcpm-mq7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  7. 2026-10-24 05:07 UTCEG score recompute
  8. 2026-10-24 05:07 UTCVendor advisory
  9. 2026-10-24 05:07 UTCGHSA enrichmentGHSA-hc98-gcpm-mq7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  10. 2026-10-23 05:19 UTCEG score recompute
  11. 2026-10-23 05:19 UTCVendor advisory
  12. 2026-10-23 05:19 UTCGHSA enrichmentGHSA-hc98-gcpm-mq7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  13. 2026-10-22 16:26 UTCEPSS rescoreEPSS 84% · 99th percentile
  14. 2026-10-22 05:31 UTCEG score recompute
  15. 2026-10-22 05:31 UTCVendor advisory
  16. 2026-10-22 05:31 UTCGHSA enrichmentGHSA-hc98-gcpm-mq7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-10-21 16:26 UTCEPSS rescoreEPSS 84% · 99th percentile
  18. 2026-10-21 05:39 UTCEG score recompute
  19. 2026-10-21 05:39 UTCVendor advisory
  20. 2026-10-21 05:39 UTCGHSA enrichmentGHSA-hc98-gcpm-mq7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  21. 2026-10-20 05:52 UTCEG score recompute
  22. 2026-10-20 05:52 UTCVendor advisory
  23. 2026-10-20 05:52 UTCGHSA enrichmentGHSA-hc98-gcpm-mq7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  24. 2026-10-19 16:26 UTCEPSS rescoreEPSS 84% · 99th percentile
  25. 2026-10-19 06:02 UTCEG score recompute
  26. 2026-10-19 06:02 UTCVendor advisory
  27. 2026-10-19 06:02 UTCGHSA enrichmentGHSA-hc98-gcpm-mq7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  28. 2026-10-18 06:13 UTCEG score recompute
  29. 2026-10-18 06:13 UTCVendor advisory
  30. 2026-10-18 06:12 UTCGHSA enrichmentGHSA-hc98-gcpm-mq7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  31. 2026-10-17 06:24 UTCEG score recompute
  32. 2026-10-17 06:24 UTCVendor advisory
  33. 2026-10-17 06:23 UTCGHSA enrichmentGHSA-hc98-gcpm-mq7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  34. 2026-10-16 06:35 UTCEG score recompute
  35. 2026-10-16 06:35 UTCVendor advisory
  36. 2026-10-16 06:35 UTCGHSA enrichmentGHSA-hc98-gcpm-mq7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  37. 2026-10-15 16:26 UTCEPSS rescoreEPSS 84% · 99th percentile
  38. 2026-10-15 05:15 UTCEG score recompute
  39. 2026-10-15 05:15 UTCVendor advisory
  40. 2026-10-15 05:15 UTCGHSA enrichmentGHSA-hc98-gcpm-mq7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  41. 2026-10-14 16:26 UTCEPSS rescoreEPSS 84% · 99th percentile
  42. 2026-10-14 00:58 UTCEG score recompute
  43. 2026-10-14 00:58 UTCVendor advisory
  44. 2026-10-14 00:57 UTCGHSA enrichmentGHSA-hc98-gcpm-mq7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  45. 2026-10-12 21:04 UTCEG score recompute
  46. 2026-10-12 21:04 UTCVendor advisory
  47. 2026-10-12 21:04 UTCGHSA enrichmentGHSA-hc98-gcpm-mq7j · GitHub severity CRITICAL · GitHub CVSS 9.8
  48. 2026-10-12 01:27 UTCEG score recompute
  49. 2026-10-09 20:01 UTCEPSS rescoreEPSS 84% · 99th percentile
  50. 2026-10-07 23:39 UTCEPSS rescoreEPSS 84% · 99th percentile
  51. 2026-09-30 14:58 UTCEPSS rescoreEPSS 84% · 99th percentile
  52. 2026-09-30 00:20 UTCEG score recompute
  53. 2026-09-28 13:45 UTCEPSS rescoreEPSS 84% · 99th percentile
  54. 2026-09-26 15:53 UTCEPSS rescoreEPSS 84% · 99th percentile
  55. 2026-09-21 20:25 UTCEPSS rescoreEPSS 84% · 99th percentile
  56. 2026-09-18 19:21 UTCEPSS rescoreEPSS 84% · 99th percentile
  57. 2026-08-30 19:12 UTCEPSS rescoreEPSS 84% · 99th percentile
  58. 2026-08-27 14:20 UTCEPSS rescoreEPSS 84% · 99th percentile
  59. 2026-08-26 14:41 UTCEPSS rescoreEPSS 84% · 99th percentile
  60. 2026-08-25 13:43 UTCEPSS rescoreEPSS 84% · 99th percentile
  61. 2026-08-23 00:13 UTCEPSS rescoreEPSS 84% · 99th percentile
  62. 2026-08-20 22:50 UTCEPSS rescoreEPSS 84% · 99th percentile
  63. 2026-08-16 14:50 UTCEPSS rescoreEPSS 84% · 99th percentile
  64. 2026-08-16 02:09 UTCEPSS rescoreEPSS 84% · 99th percentile
  65. 2026-08-15 01:25 UTCEPSS rescoreEPSS 84% · 99th percentile
  66. 2026-08-07 16:21 UTCEPSS rescoreEPSS 84% · 99th percentile
  67. 2026-07-30 16:23 UTCEPSS rescoreEPSS 84% · 99th percentile
  68. 2026-07-30 01:26 UTCEPSS rescoreEPSS 84% · 99th percentile
  69. 2026-07-23 01:12 UTCEG score recompute
  70. 2026-07-23 00:15 UTCEG score recompute
  71. 2026-07-22 21:54 UTCEG score recompute
  72. 2026-07-22 14:04 UTCEPSS rescoreEPSS 84% · 99th percentile
  73. 2026-07-21 15:21 UTCEPSS rescoreEPSS 84% · 99th percentile
  74. 2026-07-19 14:27 UTCEPSS rescoreEPSS 84% · 99th percentile

Publicly available exploits

(2 references)

Public exploit code is referenced for this CVE (1 Metasploit module, 1 Exploit-DB entry). Defenders should treat patch urgency accordingly.

  • Exploit-DBEDB-34448✓ verified
    Published Aug 28, 2014

    Mozilla Firefox - WebIDL Privileged JavaScript Injection (Metasploit)

    Open source ↗
  • Metasploitexploit/multi/browser/firefox_webidl_injection✓ verified
    Published Aug 27, 2014

    Firefox WebIDL Privileged Javascript Injection

    Open source ↗

Frequently asked(5)

What is CVE-2014-1511?
CVE-2014-1511 is a critical-severity vulnerability; its CVE record was 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 made public?
CVE-2014-1511 was made public on March 18, 2014: that is the date its CVE record's CNA, Mozilla Corporation, gives for when the vulnerability was made public. The CVE record itself was published on March 19, 2014. EchelonGraph's copy of the record carries a last-modified date of May 6, 2026; the record at its source may have been updated since.
Is CVE-2014-1511 actively exploited?
CVE-2014-1511 is not currently on CISA's Known Exploited Vulnerabilities catalog. EchelonGraph's EG-KEV model places it in Tier 2 (Weaponized), which is not evidence of exploitation: a Metasploit module exists for it, and Exploit-DB marks a public exploit for it as verified. EchelonGraph does not test whether exploit code works. 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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