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Following is the list of latest published vulnerabilities. You can filter the list based on the severity of the vulnerability, whether it is actively exploited (also known as CISA KEV List) or remotely exploitable. You can also sort the list based on the published date, last updated date, or CVSS score.
Latest Critical Actively Exploited Remotely Exploitable
Published Last Updated CVSS Score

  • 6.5

    MEDIUM
    CVE-2021-23985

    If an attacker is able to alter specific about:config values (for example malware running on the user's computer), the Devtools remote debugging feature could have been enabled in a way that was unnoticable to the user. This would have allowed a remote at... Read more

    Affected Products : firefox
    • EPSS Score: %0.51
    • Published: Mar. 31, 2021
    • Modified: Nov. 21, 2024

  • 6.5

    MEDIUM
    CVE-2021-23984

    A malicious extension could have opened a popup window lacking an address bar. The title of the popup lacking an address bar should not be fully controllable, but in this situation was. This could have been used to spoof a website and attempt to trick the... Read more

    Affected Products : firefox firefox_esr thunderbird
    • EPSS Score: %0.27
    • Published: Mar. 31, 2021
    • Modified: Nov. 21, 2024

  • 6.5

    MEDIUM
    CVE-2021-23983

    By causing a transition on a parent node by removing a CSS rule, an invalid property for a marker could have been applied, resulting in memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 87.... Read more

    Affected Products : firefox
    • EPSS Score: %0.37
    • Published: Mar. 31, 2021
    • Modified: Nov. 21, 2024

  • 6.5

    MEDIUM
    CVE-2021-23982

    Using techniques that built on the slipstream research, a malicious webpage could have scanned both an internal network's hosts as well as services running on the user's local machine utilizing WebRTC connections. This vulnerability affects Firefox ESR < ... Read more

    Affected Products : firefox firefox_esr thunderbird
    • EPSS Score: %0.20
    • Published: Mar. 31, 2021
    • Modified: Nov. 21, 2024

  • 8.1

    HIGH
    CVE-2021-23981

    A texture upload of a Pixel Buffer Object could have confused the WebGL code to skip binding the buffer used to unpack it, resulting in memory corruption and a potentially exploitable information leak or crash. This vulnerability affects Firefox ESR < 78.... Read more

    Affected Products : firefox firefox_esr thunderbird
    • EPSS Score: %0.46
    • Published: Mar. 31, 2021
    • Modified: Nov. 21, 2024

  • 8.8

    HIGH
    CVE-2021-23979

    Mozilla developers reported memory safety bugs present in Firefox 85. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects ... Read more

    Affected Products : firefox
    • EPSS Score: %0.37
    • Published: Feb. 26, 2021
    • Modified: Nov. 21, 2024

  • 8.8

    HIGH
    CVE-2021-23978

    Mozilla developers reported memory safety bugs present in Firefox 85 and Firefox ESR 78.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This v... Read more

    • EPSS Score: %0.75
    • Published: Feb. 26, 2021
    • Modified: Nov. 21, 2024

  • 5.3

    MEDIUM
    CVE-2021-23977

    Firefox for Android suffered from a time-of-check-time-of-use vulnerability that allowed a malicious application to read sensitive data from application directories. Note: This issue is only affected Firefox for Android. Other operating systems are unaffe... Read more

    Affected Products : firefox
    • EPSS Score: %0.37
    • Published: Feb. 26, 2021
    • Modified: Nov. 21, 2024

  • 8.1

    HIGH
    CVE-2021-23976

    When accepting a malicious intent from other installed apps, Firefox for Android accepted manifests from arbitrary file paths and allowed declaring webapp manifests for other origins. This could be used to gain fullscreen access for UI spoofing and could ... Read more

    Affected Products : firefox
    • EPSS Score: %0.33
    • Published: Feb. 26, 2021
    • Modified: Nov. 21, 2024

  • 6.5

    MEDIUM
    CVE-2021-23975

    The developer page about:memory has a Measure function for exploring what object types the browser has allocated and their sizes. When this function was invoked we incorrectly called the sizeof function, instead of using the API method that checks for inv... Read more

    Affected Products : firefox
    • EPSS Score: %0.29
    • Published: Feb. 26, 2021
    • Modified: Nov. 21, 2024

  • 6.1

    MEDIUM
    CVE-2021-23974

    The DOMParser API did not properly process '<noscript>' elements for escaping. This could be used as an mXSS vector to bypass an HTML Sanitizer. This vulnerability affects Firefox < 86.... Read more

    Affected Products : firefox
    • EPSS Score: %0.14
    • Published: Feb. 26, 2021
    • Modified: Nov. 21, 2024

  • 6.5

    MEDIUM
    CVE-2021-23973

    When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Fire... Read more

    • EPSS Score: %0.82
    • Published: Feb. 26, 2021
    • Modified: Nov. 21, 2024

  • 8.8

    HIGH
    CVE-2021-23972

    One phishing tactic on the web is to provide a link with HTTP Auth. For example 'https://[email protected]'. To mitigate this type of attack, Firefox will display a warning dialog; however, this warning dialog would not have been displayed i... Read more

    Affected Products : firefox
    • EPSS Score: %0.47
    • Published: Feb. 26, 2021
    • Modified: Nov. 21, 2024

  • 6.5

    MEDIUM
    CVE-2021-23971

    When processing a redirect with a conflicting Referrer-Policy, Firefox would have adopted the redirect's Referrer-Policy. This would have potentially resulted in more information than intended by the original origin being provided to the destination of th... Read more

    Affected Products : firefox
    • EPSS Score: %0.48
    • Published: Feb. 26, 2021
    • Modified: Nov. 21, 2024

  • 6.5

    MEDIUM
    CVE-2021-23970

    Context-specific code was included in a shared jump table; resulting in assertions being triggered in multithreaded wasm code. This vulnerability affects Firefox < 86.... Read more

    Affected Products : firefox
    • EPSS Score: %0.48
    • Published: Feb. 26, 2021
    • Modified: Nov. 21, 2024

  • 4.3

    MEDIUM
    CVE-2021-23969

    As specified in the W3C Content Security Policy draft, when creating a violation report, "User agents need to ensure that the source file is the URL requested by the page, pre-redirects. If that’s not possible, user agents need to strip the URL down to an... Read more

    • EPSS Score: %1.16
    • Published: Feb. 26, 2021
    • Modified: Nov. 21, 2024

  • 4.3

    MEDIUM
    CVE-2021-23968

    If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs... Read more

    • EPSS Score: %1.16
    • Published: Feb. 26, 2021
    • Modified: Nov. 21, 2024

  • 8.8

    HIGH
    CVE-2021-23965

    Mozilla developers reported memory safety bugs present in Firefox 84. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects ... Read more

    Affected Products : firefox
    • EPSS Score: %0.37
    • Published: Feb. 26, 2021
    • Modified: Nov. 21, 2024

  • 8.8

    HIGH
    CVE-2021-23964

    Mozilla developers reported memory safety bugs present in Firefox 84 and Firefox ESR 78.6. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This v... Read more

    Affected Products : firefox firefox_esr thunderbird
    • EPSS Score: %0.52
    • Published: Feb. 26, 2021
    • Modified: Nov. 21, 2024

  • 4.3

    MEDIUM
    CVE-2021-23963

    When sharing geolocation during an active WebRTC share, Firefox could have reset the webRTC sharing state in the user interface, leading to loss of control over the currently granted permission. This vulnerability affects Firefox < 85.... Read more

    Affected Products : firefox
    • EPSS Score: %0.23
    • Published: Feb. 26, 2021
    • Modified: Nov. 21, 2024
Showing 20 of 292721 Results