Vulnerabilities > Mozilla > Firefox > 21.0

DATE CVE VULNERABILITY TITLE RISK
2021-12-08 CVE-2021-38509 Improper Restriction of Rendered UI Layers or Frames vulnerability in multiple products
Due to an unusual sequence of attacker-controlled events, a Javascript alert() dialog with arbitrary (although unstyled) contents could be displayed over top an uncontrolled webpage of the attacker's choosing.
network
low complexity
mozilla debian CWE-1021
4.3
2021-12-08 CVE-2021-38510 Unspecified vulnerability in Mozilla Firefox ESR
The executable file warning was not presented when downloading .inetloc files, which, due to a flaw in Mac OS, can run commands on a user's computer.*Note: This issue only affected Mac OS operating systems.
network
mozilla
6.8
2021-12-08 CVE-2021-43530 Cross-site Scripting vulnerability in Mozilla Firefox
A Universal XSS vulnerability was present in Firefox for Android resulting from improper sanitization when processing a URL scanned from a QR code.
network
mozilla CWE-79
4.3
2021-12-08 CVE-2021-43531 Origin Validation Error vulnerability in Mozilla Firefox
When a user loaded a Web Extensions context menu, the Web Extension could access the post-redirect URL of the element clicked.
network
mozilla CWE-346
4.3
2021-12-08 CVE-2021-43532 Open Redirect vulnerability in Mozilla Firefox
The 'Copy Image Link' context menu action would copy the final image URL after redirects.
network
mozilla CWE-601
5.8
2021-12-08 CVE-2021-43533 Unspecified vulnerability in Mozilla Firefox
When parsing internationalized domain names, high bits of the characters in the URLs were sometimes stripped, resulting in inconsistencies that could lead to user confusion or attacks such as phishing.
network
mozilla
4.3
2021-12-08 CVE-2021-43534 Out-of-bounds Write vulnerability in multiple products
Mozilla developers and community members reported memory safety bugs present in Firefox 93 and Firefox ESR 91.2.
6.8
2021-12-08 CVE-2021-43535 Use After Free vulnerability in multiple products
A use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable crash.
6.8
2021-12-08 CVE-2021-43536 Information Exposure vulnerability in multiple products
Under certain circumstances, asynchronous functions could have caused a navigation to fail but expose the target URL.
network
low complexity
mozilla debian CWE-200
6.5
2021-12-08 CVE-2021-43537 Incorrect Type Conversion or Cast vulnerability in multiple products
An incorrect type conversion of sizes from 64bit to 32bit integers allowed an attacker to corrupt memory leading to a potentially exploitable crash.
network
low complexity
mozilla debian CWE-704
8.8