CVE-2019-11752

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 8.8Exploit: None knownExposed: 0

A fix is available — apply it.

It is possible to delete an IndexedDB key value and subsequently try to extract it during conversion. This results in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
45(Track)
EG Risk 45/100SSVC: 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
Severity88% × 45%
Exploitation2% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
2%
EPSS %ILE
81%
KEV
Not listed

Published

September 27, 2019

Last Modified

November 25, 2025

Advisory Details (5)

Auto-updated Aug 15, 2026
No patch confirmed yet.
generic

Security vulnerabilities fixed in Firefox ESR 60.9 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2019-27/
generic

Security vulnerabilities fixed in Firefox ESR 68.1 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2019-26/
generic

Security vulnerabilities fixed in Firefox 69 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2019-25/
generic

Mozilla Firefox: Multiple vulnerabilities (GLSA 201911-07) — Gentoo security

https://security.gentoo.org/glsa/201911-07
generic

1501152 - (CVE-2019-11752) Use after free in KeyPath::ExtractKey

https://bugzilla.mozilla.org/show_bug.cgi?id=1501152

Patch Availability(8)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntufirefox-mozsymbols (69.0+build2-0ubuntu0.19.04.1) @ disco2026-05-27ubuntu
ubuntuxul-ext-lightning (1:60.9.0+build1-0ubuntu0.16.04.2) @ xenial2026-05-27ubuntu
redhatthunderbird-0:60.9.0-1.el6_102019-09-19redhat
redhatthunderbird-0:60.9.0-1.el7_72019-09-19redhat
redhatthunderbird-0:60.9.0-2.el8_02019-09-16redhat
redhatfirefox-0:60.9.0-1.el6_102019-09-12redhat
redhatfirefox-0:60.9.0-1.el7_72019-09-12redhat
redhatfirefox-0:68.1.0-1.el8_02019-09-04redhat

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 ... 60.9.0esr-1~deb9u1 (8 versions)60.9.0esr-1~deb10u1—
thunderbird1:60.7.2-1 ... 1:60.9.0-1~deb9u1 (8 versions)1:60.9.0-1~deb10u1—
Debian:11(2)
PackageVulnerable rangeFixed inDependents
firefox-esr—68.1.0esr-1—
thunderbird—1:60.9.0-1—
Debian:12(2)
PackageVulnerable rangeFixed inDependents
firefox-esr—68.1.0esr-1—
thunderbird—1:60.9.0-1—
Debian:13(2)
PackageVulnerable rangeFixed inDependents
firefox-esr—68.1.0esr-1—
thunderbird—1:60.9.0-1—
Debian:14(2)
PackageVulnerable rangeFixed inDependents
firefox-esr—68.1.0esr-1—
thunderbird—1:60.9.0-1—
Debian:8(2)
PackageVulnerable rangeFixed inDependents
firefox-esr45.0.1esr-1 ... 60.8.0esr-1~deb9u1 (151 versions)60.9.0esr-1~deb8u1—
thunderbird1.5-4 ... 1:60.8.0-2 (88 versions)1:60.9.0-1~deb8u1—
Debian:9(2)
PackageVulnerable rangeFixed inDependents
firefox-esr45.9.0esr-1 ... 60.9.0esr-1~deb8u2 (115 versions)60.9.0esr-1~deb9u1—
thunderbird1.5-4 ... 1:60.9.0-1~deb8u1 (89 versions)1:60.9.0-1~deb9u1—

Weakness Classification(1)

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 8× in last 7d / 31× 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 124 total refreshes for this CVE.

  1. 2026-08-21 13:44 UTCOSV refresh
  2. 2026-08-20 22:51 UTCEPSS rescore
  3. 2026-08-19 17:00 UTCEPSS rescore
  4. 2026-08-18 13:44 UTCEPSS rescore
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  15. 2026-08-06 00:24 UTCOSV refresh
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  1. 2026-07-25 14:14 UTCEPSS rescore
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  5. 2026-07-23 01:39 UTCEG score recompute
  6. 2026-07-22 22:19 UTCEG score recompute
  7. 2026-07-22 14:05 UTCEPSS rescore
  8. 2026-07-21 15:22 UTCEPSS rescore
  9. 2026-07-21 15:22 UTCEPSS rescore
  10. 2026-07-20 17:04 UTCEPSS rescore
  11. 2026-07-20 05:10 UTCOSV refresh
  12. 2026-07-19 14:28 UTCEPSS rescore
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  20. 2026-07-13 22:27 UTCEPSS rescore
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  22. 2026-07-13 06:10 UTCEPSS rescore
  23. 2026-07-12 05:43 UTCEPSS rescore
  24. 2026-07-11 08:24 UTCEPSS rescore
  25. 2026-07-09 19:06 UTCEPSS rescore
  26. 2026-07-08 15:11 UTCEPSS rescore
  27. 2026-07-07 13:42 UTCEPSS rescore
  28. 2026-07-06 16:25 UTCEPSS rescore
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  31. 2026-07-04 06:28 UTCEPSS rescore
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  33. 2026-07-02 21:35 UTCOSV refresh
  34. 2026-07-02 16:56 UTCEPSS rescore
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  37. 2026-06-30 23:20 UTCEPSS rescore
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  45. 2026-06-25 13:47 UTCEPSS rescore
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  63. 2026-06-14 17:43 UTCOSV refresh
  64. 2026-06-13 22:58 UTCEPSS rescore
  65. 2026-06-12 23:09 UTCEPSS rescore
  66. 2026-06-11 13:58 UTCEPSS rescore
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  68. 2026-06-10 22:16 UTCEPSS rescore
  69. 2026-06-10 13:19 UTCEPSS rescore
  70. 2026-06-08 14:15 UTCEPSS rescore
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  74. 2026-06-06 13:45 UTCEPSS rescore
  75. 2026-06-06 13:45 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2019-11752?
CVE-2019-11752 is a high vulnerability published on September 27, 2019. It is possible to delete an IndexedDB key value and subsequently try to extract it during conversion. This results in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1.
When was CVE-2019-11752 disclosed?
CVE-2019-11752 was first published in the National Vulnerability Database on September 27, 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-2019-11752 actively exploited?
CVE-2019-11752 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 19.2% of all scored CVEs.
What is the CVSS score of CVE-2019-11752?
CVE-2019-11752 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2019-11752?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-11752, 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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