CVE-2026-8090

HIGH EPSS 20.9%
Published May 7, 20261mo ago · Modified Jun 17, 20261w ago
7.3 CVSS 3.1
High
Find Similar
Published May 7, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

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

CVSS Details

Base Score
7.3
Exploitability
3.9
Impact
3.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Low
Availability Low

Threat Intelligence

EPSS Exploit Probability
20.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 5

VendorProductVersionRange
mozillafirefox* <115.35.2
mozillafirefox* <150.0.2
mozillafirefox*≥128.0  –  <140.10.2
mozillathunderbird* <140.10.2
mozillathunderbird* <150.0.2

References 6

  • bugzilla.mozilla.org https://bugzilla.mozilla.org/show_bug.cgi?id=2034352
    Permissions Required
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-40/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-41/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-42/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-43/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-44/
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.