CVE-2019-11709

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-24. 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: 2%CVSS: 9.8Exploit: None knownExposed: 0

A fix is available — apply it.

Mozilla developers and community members reported memory safety bugs present in Firefox 67 and Firefox ESR 60.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
50(Track)
EG Risk 50/100SSVC: 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%
Exploitation2% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
2%
EPSS %ILE
83%
KEV
Not listed

Published

July 23, 2019

Last Modified

November 25, 2025

Advisory Details (5)

Auto-updated Sep 24, 2026
Patch available.
generic

Mozilla Thunderbird: Multiple vulnerabilities (GLSA 201908-20) — Gentoo security

https://security.gentoo.org/glsa/201908-20
generic

Mozilla Firefox: Multiple vulnerabilities (GLSA 201908-12) — Gentoo security

https://security.gentoo.org/glsa/201908-12
generic Patch Available

[SECURITY] [DLA 1870-1] thunderbird security update

https://lists.debian.org/debian-lts-announce/2019/08/msg00002.html
generic Patch Available

[SECURITY] [DLA 1869-1] firefox-esr security update

https://lists.debian.org/debian-lts-announce/2019/08/msg00001.html
generic

Client Challenge

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1547266%2C1540759%2C1548822%2C1550498%2C1515052%2C1539219%2C1547757%2C1550498%2C1533522

Patch Availability(8)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntufirefox-mozsymbols (68.0+build3-0ubuntu0.16.04.1) @ xenial2026-05-23ubuntu
ubuntuxul-ext-lightning (1:60.8.0+build1-0ubuntu0.16.04.2) @ xenial2026-05-23ubuntu
redhatthunderbird-0:60.8.0-1.el8_02019-07-16redhat
redhatthunderbird-0:60.8.0-1.el6_102019-07-15redhat
redhatthunderbird-0:60.8.0-1.el7_62019-07-15redhat
redhatfirefox-0:60.8.0-1.el7_62019-07-11redhat
redhatfirefox-0:60.8.0-1.el6_102019-07-11redhat
redhatfirefox-0:60.8.0-1.el8_02019-07-11redhat

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.

Affected Packages

(14 across 7 ecosystems)
Debian:10(2)
PackageVulnerable rangeFixed inDependents
firefox-esr60.7.2esr-1, 60.8.0esr-1~deb8u1, 60.8.0esr-1~deb9u160.8.0esr-1~deb10u1—
thunderbird1:60.7.2-1, 1:60.8.0-1~deb8u1, 1:60.8.0-1~deb9u11:60.8.0-1~deb10u1—
Debian:11(2)
PackageVulnerable rangeFixed inDependents
firefox-esr—60.8.0esr-1—
thunderbird—1:60.8.0-1—
Debian:12(2)
PackageVulnerable rangeFixed inDependents
firefox-esr—60.8.0esr-1—
thunderbird—1:60.8.0-1—
Debian:13(2)
PackageVulnerable rangeFixed inDependents
firefox-esr—60.8.0esr-1—
thunderbird—1:60.8.0-1—
Debian:14(2)
PackageVulnerable rangeFixed inDependents
firefox-esr—60.8.0esr-1—
thunderbird—1:60.8.0-1—
Debian:8(2)
PackageVulnerable rangeFixed inDependents
firefox-esr45.0.1esr-1 ... 60.7.2esr-1~deb9u1 (147 versions)60.8.0esr-1~deb8u1—
thunderbird1.5-4 ... 1:60.7.2-1~deb9u1 (83 versions)1:60.8.0-1~deb8u1—
Debian:9(2)
PackageVulnerable rangeFixed inDependents
firefox-esr45.9.0esr-1 ... 60.8.0esr-1~deb8u1 (110 versions)60.8.0esr-1~deb9u1—
thunderbird1.5-4 ... 1:60.8.0-1~deb8u1 (84 versions)1:60.8.0-1~deb9u1—

Weakness Classification(2)

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

All Vendor Advisories

(8)

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 / 26× 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 146 total refreshes for this CVE.

  1. 2026-09-24 13:59 UTCEPSS rescore
  2. 2026-09-23 13:43 UTCEPSS rescore
  3. 2026-09-21 20:27 UTCEPSS rescore
  4. 2026-09-20 20:10 UTCEPSS rescore
  5. 2026-09-19 14:03 UTCOSV refresh
  6. 2026-09-18 19:22 UTCEPSS rescore
  7. 2026-09-17 19:22 UTCEPSS rescore
  8. 2026-09-16 14:04 UTCEPSS rescore
  9. 2026-09-15 03:05 UTCEPSS rescore
  10. 2026-09-13 16:42 UTCEPSS rescore
  11. 2026-09-12 14:56 UTCEPSS rescore
  12. 2026-09-11 14:48 UTCEPSS rescore
  13. 2026-09-08 21:55 UTCEPSS rescore
  14. 2026-09-07 15:57 UTCEPSS rescore
  15. 2026-09-06 13:44 UTCEPSS rescore
  16. 2026-09-05 15:24 UTCEPSS rescore
  17. 2026-09-04 13:56 UTCEPSS rescore
  18. 2026-09-04 05:02 UTCEPSS rescore
  19. 2026-09-02 14:07 UTCEPSS rescore
  20. 2026-09-01 03:32 UTCEPSS rescore
  21. 2026-08-31 18:04 UTCOSV refresh
  22. 2026-08-30 19:13 UTCEPSS rescore
  23. 2026-08-30 01:18 UTCEPSS rescore
  24. 2026-08-28 21:36 UTCEPSS rescore
  25. 2026-08-27 14:21 UTCEPSS rescore
Show 75 more
  1. 2026-08-26 14:42 UTCEPSS rescore
  2. 2026-08-25 13:45 UTCEPSS rescore
  3. 2026-08-21 23:45 UTCEPSS rescore
  4. 2026-08-20 22:51 UTCEPSS rescore
  5. 2026-08-19 17:00 UTCEPSS rescore
  6. 2026-08-18 13:44 UTCEPSS rescore
  7. 2026-08-17 13:43 UTCEPSS rescore
  8. 2026-08-16 14:52 UTCEPSS rescore
  9. 2026-08-16 02:10 UTCEPSS rescore
  10. 2026-08-15 01:26 UTCEPSS rescore
  11. 2026-08-14 21:54 UTCOSV refresh
  12. 2026-08-13 21:56 UTCEPSS rescore
  13. 2026-08-12 13:47 UTCEPSS rescore
  14. 2026-08-08 16:33 UTCEPSS rescore
  15. 2026-08-07 16:23 UTCEPSS rescore
  16. 2026-08-06 13:43 UTCEPSS rescore
  17. 2026-08-05 19:13 UTCEPSS rescore
  18. 2026-08-04 15:05 UTCEPSS rescore
  19. 2026-08-04 10:33 UTCEPSS rescore
  20. 2026-08-03 10:31 UTCEPSS rescore
  21. 2026-08-02 02:23 UTCEPSS rescore
  22. 2026-08-01 04:12 UTCEPSS rescore
  23. 2026-07-30 16:24 UTCEPSS rescore
  24. 2026-07-30 10:44 UTCOSV refresh
  25. 2026-07-30 01:27 UTCEPSS rescore
  26. 2026-07-28 15:32 UTCEPSS rescore
  27. 2026-07-26 14:51 UTCEPSS rescore
  28. 2026-07-25 14:14 UTCEPSS rescore
  29. 2026-07-24 14:14 UTCEPSS rescore
  30. 2026-07-24 14:14 UTCEPSS rescore
  31. 2026-07-23 14:15 UTCEPSS rescore
  32. 2026-07-23 01:39 UTCEG score recompute
  33. 2026-07-22 22:19 UTCEG score recompute
  34. 2026-07-22 14:05 UTCEPSS rescore
  35. 2026-07-21 15:22 UTCEPSS rescore
  36. 2026-07-21 15:22 UTCEPSS rescore
  37. 2026-07-20 17:04 UTCEPSS rescore
  38. 2026-07-19 14:28 UTCEPSS rescore
  39. 2026-07-19 14:28 UTCEPSS rescore
  40. 2026-07-19 02:26 UTCEPSS rescore
  41. 2026-07-19 02:26 UTCEPSS rescore
  42. 2026-07-18 10:01 UTCEPSS rescore
  43. 2026-07-16 16:59 UTCEPSS rescore
  44. 2026-07-16 16:59 UTCEPSS rescore
  45. 2026-07-15 16:55 UTCEPSS rescore
  46. 2026-07-13 22:27 UTCEPSS rescore
  47. 2026-07-13 06:10 UTCEPSS rescore
  48. 2026-07-13 06:10 UTCEPSS rescore
  49. 2026-07-12 20:07 UTCOSV refresh
  50. 2026-07-12 05:43 UTCEPSS rescore
  51. 2026-07-11 08:24 UTCEPSS rescore
  52. 2026-07-09 19:06 UTCEPSS rescore
  53. 2026-07-08 15:11 UTCEPSS rescore
  54. 2026-07-07 13:42 UTCEPSS rescore
  55. 2026-07-06 16:25 UTCEPSS rescore
  56. 2026-07-06 02:20 UTCEPSS rescore
  57. 2026-07-05 02:27 UTCEPSS rescore
  58. 2026-07-04 06:28 UTCEPSS rescore
  59. 2026-07-04 06:28 UTCEPSS rescore
  60. 2026-07-02 16:56 UTCEPSS rescore
  61. 2026-07-01 15:03 UTCEPSS rescore
  62. 2026-07-01 15:03 UTCEPSS rescore
  63. 2026-06-30 23:20 UTCEPSS rescore
  64. 2026-06-30 23:20 UTCEPSS rescore
  65. 2026-06-29 14:03 UTCEPSS rescore
  66. 2026-06-28 14:04 UTCEPSS rescore
  67. 2026-06-28 04:54 UTCEPSS rescore
  68. 2026-06-28 04:53 UTCEPSS rescore
  69. 2026-06-27 03:06 UTCEPSS rescore
  70. 2026-06-27 03:06 UTCEPSS rescore
  71. 2026-06-25 13:47 UTCEPSS rescore
  72. 2026-06-25 13:47 UTCEPSS rescore
  73. 2026-06-24 14:03 UTCEPSS rescore
  74. 2026-06-24 14:02 UTCEPSS rescore
  75. 2026-06-24 05:29 UTCOSV refresh

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Frequently asked(5)

What is CVE-2019-11709?
CVE-2019-11709 is a critical vulnerability published on July 23, 2019. Mozilla developers and community members reported memory safety bugs present in Firefox 67 and Firefox ESR 60.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects…
When was CVE-2019-11709 disclosed?
CVE-2019-11709 was first published in the National Vulnerability Database on July 23, 2019, with the most recent update on November 25, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-11709 actively exploited?
CVE-2019-11709 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 17.1% of all scored CVEs.
What is the CVSS score of CVE-2019-11709?
CVE-2019-11709 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2019-11709?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-11709, 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.

Dependency Blast Radius

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