Windows apps · Application version · August 30, 2023

Mozilla Firefox (en-US) 117.0

Mozilla Firefox (en-US) 117.0, released August 30, 2023, fixes 13 CVEs in Mozilla Firefox (en-US). None of them is reported as exploited. Patch Radar priority: High. The latest Mozilla Firefox (en-US) is 159.0, which also fixes every one of these CVEs.

High

Superseded. The latest Mozilla Firefox (en-US) is 159.0, which also fixes every CVE on this page. Install that instead.

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

8.8

Base score, 0 to 10

Highest EPSS

0.0105

64th percentile

Priority of the 13 CVEs

Patch now 0
                                Urgent 0
                                High 11
                                Routine 2

Applies to

Product	Version
Mozilla Firefox (en-US)	117.0

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2023-4576	Integer Overflow in RecordedSourceSurfaceCreation	8.6	0.0082	None reported
High	CVE-2023-4584	Memory safety bugs fixed in Firefox 117, Firefox ESR 102.15, Firefox ESR 115.2, Thunderbird 102.15, and Thunderbird 115.2	8.8	0.0080	None reported
High	CVE-2023-4585	Memory safety bugs fixed in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2	8.8	0.0077	None reported
High	CVE-2023-4583	Browsing Context potentially not cleared when closing Private Window	8.8	0.0069	None reported
High	CVE-2023-4574	Memory corruption in IPC ColorPickerShownCallback	8.8	0.0066	None reported
High	CVE-2023-4575	Memory corruption in IPC FilePickerShownCallback	8.8	0.0066	None reported
High	CVE-2023-4577	Memory corruption in JIT UpdateRegExpStatics	8.8	0.0065	None reported
High	CVE-2023-4573	Memory corruption in IPC CanvasTranslator	8.8	0.0063	None reported
High	CVE-2023-4578	Error reporting methods in SpiderMonkey could have triggered an Out of Memory Exception	8.8	0.0062	None reported
High	CVE-2023-4581	XLL file extensions were downloadable without warnings	8.8	0.0057	None reported
High	CVE-2023-4580	Push notifications saved to disk unencrypted	8.8	0.0042	None reported
Routine	CVE-2023-5732	Address bar spoofing via bidirectional characters	6.5	0.0105	None reported
Routine	CVE-2023-4579	Persisted search terms were formatted as URLs	3.1	0.0045	None reported

Other Mozilla Firefox (en-US) versions with security fixes

Mozilla Firefox (en-US) 157.0.1
Mozilla Firefox (en-US)
Mozilla Firefox (en-US) 157.0
Mozilla Firefox (en-US)
Mozilla Firefox (en-US) 156.0
Mozilla Firefox (en-US)
Mozilla Firefox (en-US) 155.0
Mozilla Firefox (en-US)
Mozilla Firefox (en-US) 154.0
Mozilla Firefox (en-US)
Mozilla Firefox (en-US) 153.0
Mozilla Firefox (en-US)

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