Name: CVE-2026-16411: Improper Restriction of Operations within the Bounds of a Memory Buffer
Creator: Rapid7
Published: 2026-07-21T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-16411, CWE-119, CVSS 9.8, EPSS 0.0057

Memory safety bugs present in Thunderbird 152. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

CVSS Details

CVSS 3.1 Base Score: 9.8
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Freebsd	—	Upgrade thunderbirdUpgrade firefox	Jul 29, 2026	Jul 28, 2026
Mfsa2026 68	—	Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 153.0	Jul 21, 2026	Jul 21, 2026
Mozilla Thunderbird	—	Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 153.0	Jul 21, 2026	Jul 21, 2026

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CVSS Details

Covered by Rapid7

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