Mozilla Firefox (en-US) 116.0
Mozilla Firefox (en-US) 116.0, released August 2, 2023, fixes 15 CVEs in Mozilla Firefox (en-US). None of them is reported as exploited. Patch Radar priority: Urgent. The latest Mozilla Firefox (en-US) is 159.0, which also fixes every one of these CVEs.
Superseded. The latest Mozilla Firefox (en-US) is 159.0, which also fixes every CVE on this page. Install that instead.
Priority of the 15 CVEs
Applies to
| Product | Version |
|---|---|
| Mozilla Firefox (en-US) | 116.0 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Urgent | CVE-2023-4056 | Mozilla Firefox ESR and 3 others: Memory safety bugs present in Firefox 115, Firefox ESR 115.0, Firefox ESR 102.13, Thunderbird 115.0,… | 9.8 | 0.0095 | None reported |
| Urgent | CVE-2023-4057 | Mozilla Firefox ESR and 5 others: Memory safety bugs present in Firefox 115, Firefox ESR 115.0, and Thunderbird 115.0. | 9.8 | 0.0089 | None reported |
| Urgent | CVE-2023-4058 | Mozilla Firefox ESR and 3 others: Memory safety bugs present in Firefox 115. | 9.8 | 0.0079 | None reported |
| High | CVE-2023-4050 | Mozilla Firefox ESR and 3 others: In some cases, an untrusted input stream was copied to a stack buffer without checking its size. | 7.5 | 0.1258 | None reported |
| High | CVE-2023-4046 | Mozilla Firefox ESR and 3 others: Allocation of Resources Without Limits or Throttling | 7.5 | 0.0113 | None reported |
| High | CVE-2023-4048 | Mozilla Firefox ESR and 3 others: An out-of-bounds read could have led to an exploitable crash when parsing HTML with DOMParser in low… | 7.5 | 0.0093 | None reported |
| High | CVE-2023-4053 | Full screen notification obscured by external program | 8.8 | 0.0077 | None reported |
| High | CVE-2023-4055 | Mozilla Firefox ESR and 3 others: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') | 7.5 | 0.0073 | None reported |
| High | CVE-2024-2616 | Mozilla Firefox ESR and 5 others: To harden ICU against exploitation, the behavior for out-of-memory conditions was changed to crash instead… | 7.5 | 0.0070 | None reported |
| High | CVE-2023-4051 | Full screen notification obscured by file open dialog | 8.8 | 0.0066 | None reported |
| High | CVE-2023-4049 | Mozilla Firefox ESR and 3 others: Race conditions in reference counting code were found through code inspection. | 7.5 | 0.0063 | None reported |
| High | CVE-2023-4047 | Mozilla Firefox ESR and 3 others: Cross-Site Request Forgery (CSRF) | 8.8 | 0.0063 | None reported |
| High | CVE-2023-4045 | Mozilla Firefox ESR and 3 others: Offscreen Canvas did not properly track cross-origin tainting, which could have been used to access image… | 7.5 | 0.0059 | None reported |
| Routine | CVE-2023-4052 | Mozilla Firefox ESR and 5 others: The Firefox updater created a directory writable by non-privileged users. | 6.5 | 0.0071 | None reported |
| Routine | CVE-2023-4054 | Mozilla Firefox ESR and 4 others: When opening appref-ms files, Firefox did not warn the user that these files may contain malicious code. | 5.5 | 0.0021 | None reported |
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