Vulnerabilities > Mozilla > Firefox ESR > 91.0
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2021-12-08 | CVE-2021-43545 | Excessive Iteration vulnerability in multiple products Using the Location API in a loop could have caused severe application hangs and crashes. | 6.5 |
| 2021-12-08 | CVE-2021-43546 | Improper Restriction of Rendered UI Layers or Frames vulnerability in multiple products It was possible to recreate previous cursor spoofing attacks against users with a zoomed native cursor. | 4.3 |
| 2021-11-03 | CVE-2021-38495 | Out-of-bounds Write vulnerability in Mozilla Firefox ESR Mozilla developers reported memory safety bugs present in Thunderbird 78.13.0. | 8.8 |
| 2021-11-03 | CVE-2021-38497 | Origin Validation Error vulnerability in Mozilla Firefox Through use of reportValidity() and window.open(), a plain-text validation message could have been overlaid on another origin, leading to possible user confusion and spoofing attacks. | 6.5 |
| 2021-11-03 | CVE-2021-38498 | Use After Free vulnerability in Mozilla Firefox During process shutdown, a document could have caused a use-after-free of a languages service object, leading to memory corruption and a potentially exploitable crash. | 7.5 |
| 2021-11-03 | CVE-2021-38501 | Unspecified vulnerability in Mozilla Firefox Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. | 8.8 |