01 Record

CVE-2024-8382

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

HighPUBLISHEDCNA: mozilla

CNA base score8.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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02 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

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.60% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 46.0% of scored records. A rank, not a probability.

NVD base score

8.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2024-09-03 12:32Z2 YR AGO

Last updated

2025-11-04 16:16Z10 MO AGO

Reserved

2024-09-03

Assigning CNA

mozilla

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weaknesses

CWE-273Improper Check for Dropped PrivilegesBase
CWE-497Exposure of Sensitive System Information to an Unauthorized Control SphereBase

Data version

5.2

Document digest

20f27ec37db137ef9b6946398dc07228b447a4bcf2be326d15310d07cb3216ee

05 Affected products

VendorProductVersionsPlatforms

MozillaFirefox< 130, 0 to < 130—

MozillaFirefox ESR< 128.2, < 115.15—

MozillaThunderbird< 128.2, < 115.15, 0 to < 128.2, 0 to < 115.15—

mozillafirefox_esr0 to < 128.2, 0 to < 115.15—

06 References

bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1906744
www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2024-39/
www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2024-40/
www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2024-41/
www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2024-43/
www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2024-44/
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/09/msg00025.html
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/09/msg00012.html

01 Record index

CVE-2024-8382

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2024-8382

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References