CVE-2024-8382

HIGH
8.8
CVSS Score
Published: September 3, 2024 at 12:32 PM UTC
Updated: June 17, 2026 at 08:22 AM UTC
3 products affected across 1 vendorFirefoxFirefox ESRThunderbird

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Severity
HIGH8.8
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

Internal browser event interfaces were exposed to web content when privileged EventHandler listener callbacks ran for those events. Web content that tried to use those interfaces would not be able to use them with elevated privileges, but their presence would indicate certain browser features had been used, such as when a user opened the Dev Tools console. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, Firefox ESR < 115.15, Thunderbird < 128.2, and Thunderbird < 115.15.

Affected

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

v < 130v < 130.0
Affected range stops below 130, so it looks safe — our inference, not a vendor statement
Affected range stops below 130.0, so it looks safe — our inference, not a vendor statement
v < 115.15v < 128.2128.0 ≤ v < 128.2
Affected range stops below 115.15, so it looks safe — our inference, not a vendor statement
Affected range stops below 128.2, so it looks safe — our inference, not a vendor statement
v < 115.15v < 128.2
Affected range stops below 115.15, so it looks safe — our inference, not a vendor statement
Affected range stops below 128.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfoCWE-273

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