Name: CVE-2026-92076: Improper Restriction of Operations within the Bounds of a Memory Buffer
Creator: Rapid7
Published: 2026-09-15T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-92076, CWE-119, CVSS 8.8, EPSS 0.00152

Incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

CVSS Details

CVSS 3.1 Base Score: 8.8
CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Amazon Linux Ami 2	—	Upgrade firefox	Oct 19, 2026	Oct 19, 2026
Amazon_linux_2023	—	Upgrade firefoxUpgrade firefox-debugsourceUpgrade firefox-debuginfo	Oct 13, 2026	Sep 15, 2026
Mfsa2026 90	—	Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 156.0	Sep 15, 2026	Sep 15, 2026
Mfsa2026 93	—	Upgrade to Mozilla Firefox ESR version 153.3Upgrade to the latest version of Mozilla Firefox	Sep 15, 2026	Sep 15, 2026
Mozilla Thunderbird	—	Upgrade to Mozilla Thunderbird version 153.3Upgrade to the latest version of Mozilla Thunderbird	Sep 15, 2026	Sep 15, 2026

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CVSS Details

Covered by Rapid7

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