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CVE Vulnerability Details :
CVE-2026-8090
PUBLISHED
More InfoOfficial Page
Assigner-mozilla
Assigner Org ID-f16b083a-5664-49f3-a51e-8d479e5ed7fe
View Known Exploited Vulnerability (KEV) details
Published At-07 May, 2026 | 12:45
Updated At-07 May, 2026 | 13:49
Rejected At-
▼CVE Numbering Authority (CNA)
Use-after-free in the DOM: Networking component

Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, and Firefox ESR 115.35.2.

Affected Products
Vendor
Mozilla CorporationMozilla
Product
Firefox
Versions
Unaffected
  • From 115.35.2 through 115.* (rpm)
  • From 140.10.2 through 140.* (rpm)
  • From 150.0.2 through * (rpm)
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Kevin Brosnan
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://bugzilla.mozilla.org/show_bug.cgi?id=2034352
N/A
https://www.mozilla.org/security/advisories/mfsa2026-40/
N/A
https://www.mozilla.org/security/advisories/mfsa2026-41/
N/A
https://www.mozilla.org/security/advisories/mfsa2026-42/
N/A
Hyperlink: https://bugzilla.mozilla.org/show_bug.cgi?id=2034352
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-40/
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-41/
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-42/
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Problem Types
TypeCWE IDDescription
CWECWE-416CWE-416 Use After Free
Type: CWE
CWE ID: CWE-416
Description: CWE-416 Use After Free
Metrics
VersionBase scoreBase severityVector
3.17.3HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Version: 3.1
Base score: 7.3
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found