CVE-2013-5616

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: 6.7%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Use-after-free vulnerability in the nsEventListenerManager::HandleEventSubType function in Mozilla Firefox before 26.0, Firefox ESR 24.x before 24.2, Thunderbird before 24.2, and SeaMonkey before 2.23 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via vectors related to mListeners event listeners.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
51
EG Risk 51/100CISA 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%
Exploitation7% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track* or Attend at high (mission-essential systems).
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
6.7%
EPSS %ILE
93rd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* or Attend at high (mission-essential systems).

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

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · 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

December 11, 2013

Last Modified

April 29, 2026

References (42)

Patch Availability(4)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntufirefox (26.0+build2-0ubuntu0.13.10.2) @ saucy2026-05-20ubuntu
ubuntuthunderbird (1:24.2.0+build1-0ubuntu0.13.10.1) @ saucy2026-05-20ubuntu
redhatfirefox-0:24.2.0-1.el6_52013-12-11redhat
redhatthunderbird-0:24.2.0-1.el6_52013-12-11redhat

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.

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 3× in last 7d / 14× 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 148 total refreshes for this CVE.

  1. 2026-10-05 17:38 UTCEPSS rescore
  2. 2026-09-30 14:58 UTCEPSS rescore
  3. 2026-09-30 00:14 UTCEG score recompute
  4. 2026-09-28 13:45 UTCEPSS rescore
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  1. 2026-08-16 02:09 UTCEPSS rescore
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  5. 2026-08-06 13:42 UTCEPSS rescore
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  9. 2026-07-30 16:23 UTCEPSS rescore
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  11. 2026-07-28 15:31 UTCEPSS rescore
  12. 2026-07-23 14:14 UTCEPSS rescore
  13. 2026-07-23 01:11 UTCEG score recompute
  14. 2026-07-23 00:14 UTCEG score recompute
  15. 2026-07-22 21:52 UTCEG score recompute
  16. 2026-07-22 14:04 UTCEPSS rescore
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  23. 2026-07-19 02:25 UTCEPSS rescore
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  25. 2026-07-16 16:58 UTCEPSS rescore
  26. 2026-07-15 16:54 UTCEPSS rescore
  27. 2026-07-15 16:54 UTCEPSS rescore
  28. 2026-07-13 22:26 UTCEPSS rescore
  29. 2026-07-12 05:42 UTCEPSS rescore
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  43. 2026-06-27 03:05 UTCEPSS rescore
  44. 2026-06-25 13:47 UTCEPSS rescore
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  48. 2026-06-23 21:30 UTCEPSS rescore
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  50. 2026-06-22 14:22 UTCEPSS rescore
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  52. 2026-06-19 19:23 UTCEPSS rescore
  53. 2026-06-18 17:49 UTCEPSS rescore
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  75. 2026-06-04 13:09 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2013-5616?
CVE-2013-5616 is a critical vulnerability published on December 11, 2013. Use-after-free vulnerability in the nsEventListenerManager::HandleEventSubType function in Mozilla Firefox before 26.0, Firefox ESR 24.x before 24.2, Thunderbird before 24.2, and SeaMonkey before 2.23 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory…
When was CVE-2013-5616 disclosed?
CVE-2013-5616 was first published on December 11, 2013, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2013-5616 actively exploited?
CVE-2013-5616 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 6.7% probability of exploitation in the next 30 days (93rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2013-5616?
CVE-2013-5616 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2013-5616?
A fix for CVE-2013-5616 is available: update to the fixed version the vendor names in its advisory.

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