vulnerability
Ubuntu: (Multiple Advisories) (CVE-2016-5261): Firefox vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:P/I:P/A:P) | Aug 4, 2016 | Aug 6, 2016 | Mar 27, 2026 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Aug 4, 2016
Added
Aug 6, 2016
Modified
Mar 27, 2026
Description
Integer overflow in the WebSocketChannel class in the WebSockets subsystem in Mozilla Firefox before 48.0 and Firefox ESR < 45.4 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted packets that trigger incorrect buffer-resize operations during buffering.
Solution
ubuntu-upgrade-firefox
References
Rapid7 Labs
2026 Global Threat Landscape Report
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