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    CVE-2019-11752

    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.

    Published:Sep 3, 2019
    Last Modified:Nov 25, 2025
    EPS:Sep 27, 2019
    EPSS Score:0.00893
    CVSS Score:8.8

    Affected Products

    Vendor
    Mozilla
    Product
    Firefox
    Vendor
    Mozilla
    Product
    Firefox Esr
    Vendor
    Mozilla
    Product
    Thunderbird
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    CVE-2026-84141 (CVSS 9.8) — Integer overflow in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 155, Firefox ESR…
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    CVE-2026-84139 (CVSS 6.1) — Clickjacking issue in the DOM: Events component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.…
    CVE-2026-84138 (CVSS 6.5) — Denial-of-service in the PDF Viewer component. This vulnerability was fixed in Firefox 155 and Thunderbird 155…
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    References

    http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html
    http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html
    http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html
    http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html
    https://bugzilla.mozilla.org/show_bug.cgi?id=1501152
    https://security.gentoo.org/glsa/201911-07
    https://usn.ubuntu.com/4150-1/
    https://www.mozilla.org/security/advisories/mfsa2019-25/
    https://www.mozilla.org/security/advisories/mfsa2019-26/
    https://www.mozilla.org/security/advisories/mfsa2019-27/
    https://www.mozilla.org/security/advisories/mfsa2019-29/
    https://www.mozilla.org/security/advisories/mfsa2019-30/
    http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html
    http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html
    http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html
    http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html
    https://bugzilla.mozilla.org/show_bug.cgi?id=1501152
    https://security.gentoo.org/glsa/201911-07
    https://usn.ubuntu.com/4150-1/
    https://www.mozilla.org/security/advisories/mfsa2019-25/
    https://www.mozilla.org/security/advisories/mfsa2019-26/
    https://www.mozilla.org/security/advisories/mfsa2019-27/
    https://www.mozilla.org/security/advisories/mfsa2019-29/
    https://www.mozilla.org/security/advisories/mfsa2019-30/

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High