Mozilla Firefox ESR (en-US) 102.0
Mozilla Firefox ESR (en-US) 102.0, released June 23, 2022, fixes 119 CVEs in Mozilla Firefox ESR (en-US). 2 of them are being exploited (CVE-2022-26485); 2 on CISA KEV. Patch Radar priority: Patch now. The latest Mozilla Firefox ESR (en-US) is 153.7.0, which also fixes every one of these CVEs.
Superseded. The latest Mozilla Firefox ESR (en-US) is 153.7.0, which also fixes every CVE on this page. Install that instead.
Priority of the 119 CVEs
Applies to
| Product | Version |
|---|---|
| Mozilla Firefox ESR (en-US) | 102.0 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Patch now | CVE-2022-26485 | Mozilla Firefox Use-After-Free Vulnerability | 9.8 | 0.1426 | KEVExploited |
| Patch now | CVE-2022-26486 | Mozilla Firefox Use-After-Free Vulnerability | 9.8 | 0.0236 | KEVExploited |
| Urgent | CVE-2021-4129 | Mozilla Firefox ESR and 3 others: Out-of-bounds Write | 9.8 | 0.0106 | None reported |
| Urgent | CVE-2022-26384 | Mozilla Thunderbird and 4 others: Protection Mechanism Failure | 9.8 | 0.0097 | None reported |
| Urgent | CVE-2022-26381 | Mozilla Thunderbird and 4 others: Use After Free | 9.8 | 0.0087 | None reported |
| Urgent | CVE-2022-26383 | Mozilla Thunderbird and 4 others: User Interface (UI) Misrepresentation of Critical Information | 9.8 | 0.0073 | None reported |
| Urgent | CVE-2022-26387 | Mozilla Thunderbird and 4 others: Time-of-check Time-of-use (TOCTOU) Race Condition | 9.8 | 0.0066 | None reported |
| High | CVE-2022-2200 | Mozilla Thunderbird and 4 others: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') | 9.8 | 0.2394 | None reported |
| High | CVE-2021-38503 | Mozilla Firefox ESR and 3 others: The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass… | 10.0 | 0.0412 | None reported |
| High | CVE-2021-30547 | Chromium: CVE-2021-30547 Out of bounds write in ANGLE | 8.8 | 0.0361 | None reported |
| High | CVE-2022-28281 | Mozilla Thunderbird and 4 others: Out-of-bounds Write | 8.8 | 0.0278 | None reported |
| High | CVE-2022-28282 | Mozilla Thunderbird and 4 others: Use After Free | 8.8 | 0.0218 | None reported |
| High | CVE-2021-43537 | Mozilla Firefox ESR and 3 others: An incorrect type conversion of sizes from 64bit to 32bit integers allowed an attacker to corrupt memory… | 9.8 | 0.0209 | None reported |
| High | CVE-2021-43542 | Mozilla Firefox ESR and 3 others: Using XMLHttpRequest, an attacker could have identified installed applications by probing error messages… | 9.8 | 0.0183 | None reported |
| High | CVE-2021-38504 | Mozilla Firefox ESR and 3 others: When interacting with an HTML input element's file picker dialog with webkitdirectory set, a use-after-free… | 9.8 | 0.0177 | None reported |
| High | CVE-2021-43536 | Mozilla Firefox ESR and 3 others: Under certain circumstances, asynchronous functions could have caused a navigation to fail but expose… | 9.8 | 0.0174 | None reported |
| High | CVE-2021-43539 | Mozilla Firefox ESR and 3 others: Failure to correctly record the location of live pointers across wasm instance calls resulted in a GC… | 9.8 | 0.0173 | None reported |
| High | CVE-2021-43545 | Mozilla Firefox ESR and 3 others: Using the Location API in a loop could have caused severe application hangs and crashes. | 9.8 | 0.0172 | None reported |
| High | CVE-2021-38496 | Mozilla Firefox ESR and 3 others: During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting… | 8.8 | 0.0166 | None reported |
| High | CVE-2021-43541 | Mozilla Firefox ESR and 3 others: When invoking protocol handlers for external protocols, a supplied parameter URL containing spaces was… | 9.8 | 0.0163 | None reported |
| High | CVE-2021-38506 | Mozilla Firefox ESR and 3 others: Through a series of navigations, Firefox could have entered fullscreen mode without notification or warning… | 7.5 | 0.0151 | None reported |
| High | CVE-2021-43546 | Mozilla Firefox ESR and 3 others: It was possible to recreate previous cursor spoofing attacks against users with a zoomed native cursor. | 9.8 | 0.0151 | None reported |
| High | CVE-2021-38498 | Mozilla Firefox ESR and 3 others: During process shutdown, a document could have caused a use-after-free of a languages service object,… | 7.5 | 0.0147 | None reported |
| High | CVE-2021-43543 | Mozilla Firefox ESR and 3 others: Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by… | 9.8 | 0.0145 | None reported |
| High | CVE-2021-4140 | Mozilla Firefox ESR and 3 others: XML Injection (aka Blind XPath Injection) | 10.0 | 0.0141 | None reported |
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