CVE-2019-11752

HIGH
8.8
CVSS Score
Published: September 27, 2019 at 05:14 PM UTC
Updated: June 17, 2026 at 02:13 AM UTC
3 products affected across 1 vendorFirefoxThunderbirdFirefox ESR

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Severity
HIGH8.8
Exploit prediction
EPSS 2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 60.9.0v < 69v < 69.0
Affected range stops below 69, so it looks safe — our inference, not a vendor statement
Affected range stops below 69.0, so it looks safe — our inference, not a vendor statement
v < 60.9v < 68.168.0 ≤ v < 68.1.0
Affected range stops below 60.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 60.9.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 68.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 68.1.0, so it looks safe — our inference, not a vendor statement
v < 60.9v < 60.9.0v < 68.168.0 ≤ v < 68.1.0
Affected range stops below 60.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 60.9.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 68.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 68.1.0, so it looks safe — our inference, not a vendor statement

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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