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thunderbird vulnerabilities · Page 48

Vulnerabilities published for thunderbird in the last 30 days: 263. Listed in the KEV catalogue: 0.

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Vulnerabilities: 1304

  1. CVE-2025-1934

    Medium · CVSS 6.5EPSS 0.45%Fix available

    Unexpected GC during RegExp bailout processing

    It was possible to interrupt the processing of a RegExp bailout and run additional JavaScript, potentially triggering garbage collection when the engine was not expecting it. This vulnerability was fixed in Firefox 136, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.

    • Update to 1:128.12.0+build1-0ubuntu0.22.04.1
    Published Updated
  2. CVE-2025-1933

    High · CVSS 7.6EPSS 0.32%Fix available

    JIT corruption of WASM i32 return values on 64-bit CPUs

    On 64-bit CPUs, when the JIT compiles WASM i32 return values they can pick up bits from left over memory. This can potentially cause them to be treated as a different type. This vulnerability was fixed in Firefox 136, Firefox ESR 115.21, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.

    • Update to 1:128.12.0+build1-0ubuntu0.22.04.1
    Published Updated
  3. CVE-2025-1932

    High · CVSS 8.1EPSS 0.42%Fix available

    Inconsistent comparator in XSLT sorting led to out-of-bounds access

    An inconsistent comparator in xslt/txNodeSorter could have resulted in potentially exploitable out-of-bounds access. Only affected version 122 and later. This vulnerability was fixed in Firefox 136, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.

    • Update to 1:128.12.0+build1-0ubuntu0.22.04.1
    Published Updated
  4. CVE-2025-1931

    High · CVSS 7.5EPSS 0.54%Fix available

    Use-after-free in WebTransportChild

    It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash. This vulnerability was fixed in Firefox 136, Firefox ESR 115.21, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.

    • Update to 1:128.12.0+build1-0ubuntu0.22.04.1
    Published Updated
  5. CVE-2025-1930

    High · CVSS 8.8EPSS 0.4%Fix available

    AudioIPC StreamData could trigger a use-after-free in the Browser process

    On Windows, a compromised content process could use bad StreamData sent over AudioIPC to trigger a use-after-free in the Browser process. This could have led to a sandbox escape. This vulnerability was fixed in Firefox 136, Firefox ESR 115.21, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.

    • Update to 1:128.12.0+build1-0ubuntu0.22.04.1
    Published Updated
  6. CVE-2025-1015

    Medium · CVSS 5.4EPSS 1.37%Fix available

    Unsanitized address book fields

    The Thunderbird Address Book URI fields contained unsanitized links. This could be used by an attacker to create and export an address book containing a malicious payload in a field. For example, in the “Other” field of the Instant Messaging section. If another user imported the address book, clicking on the link could result in opening a web page inside Thunderbird, and that page could execute (unprivileged) JavaScript. This vulnerability was fixed in Thunderbird 128.7 and Thunderbird 135.

    • Update to 1:128.12.0+build1-0ubuntu0.22.04.1
    Published Updated
  7. CVE-2025-1020

    Critical · CVSS 9.8EPSS 0.54%Fix available

    Memory safety bugs fixed in Firefox 135 and Thunderbird 135

    Memory safety bugs present in Firefox 134 and Thunderbird 134. 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 was fixed in Firefox 135 and Thunderbird 135.

    • Update to 1:140.7.1+build1-0ubuntu0.22.04.1
    Published Updated
  8. CVE-2025-1017

    Critical · CVSS 9.8EPSS 0.58%Fix available

    Memory safety bugs fixed in Firefox 135, Thunderbird 135, Firefox ESR 128.7, and Thunderbird 128.7

    Memory safety bugs present in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6. 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 vulnerability was fixed in Firefox 135, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.

    • Update to 1:128.12.0+build1-0ubuntu0.22.04.1
    Published Updated
  9. CVE-2025-1016

    Critical · CVSS 9.8EPSS 0.59%Fix available

    Memory safety bugs fixed in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, Thunderbird 115.20, and Thunderbird 128.7

    Memory safety bugs present in Firefox 134, Thunderbird 134, Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6. 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 vulnerability was fixed in Firefox 135, Firefox ESR 115.20, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.

    • Update to 1:128.12.0+build1-0ubuntu0.22.04.1
    Published Updated
  10. CVE-2025-0510

    Medium · CVSS 6.5EPSS 0.29%Fix available

    Address of e-mail sender can be spoofed by malicious email

    Thunderbird displayed an incorrect sender address if the From field of an email used the invalid group name syntax that is described in CVE-2024-49040. This vulnerability was fixed in Thunderbird 128.7 and Thunderbird 135.

    • Update to 1:128.12.0+build1-0ubuntu0.22.04.1
    Published Updated
  11. CVE-2025-1014

    High · CVSS 8.8EPSS 0.39%Fix available

    Certificate length was not properly checked

    Certificate length was not properly checked when added to a certificate store. In practice only trusted data was processed. This vulnerability was fixed in Firefox 135, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.

    • Update to 1:128.12.0+build1-0ubuntu0.22.04.1
    Published Updated
  12. CVE-2025-1013

    Medium · CVSS 6.5EPSS 0.33%Fix available

    Potential opening of private browsing tabs in normal browsing windows

    A race condition could have led to private browsing tabs being opened in normal browsing windows. This could have resulted in a potential privacy leak. This vulnerability was fixed in Firefox 135, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.

    • Update to 1:128.12.0+build1-0ubuntu0.22.04.1
    Published Updated
  13. CVE-2025-1019

    Medium · CVSS 4.3EPSS 0.36%Fix available

    Fullscreen notification not properly displayed

    The z-order of the browser windows could be manipulated to hide the fullscreen notification. This could potentially be leveraged to perform a spoofing attack. This vulnerability was fixed in Firefox 135 and Thunderbird 135.

    • Update to 1:140.7.1+build1-0ubuntu0.22.04.1
    Published Updated
  14. CVE-2025-1011

    Critical · CVSS 9.8EPSS 0.63%Fix available

    A bug in WebAssembly code generation could result in a crash

    A bug in WebAssembly code generation could have lead to a crash. It may have been possible for an attacker to leverage this to achieve code execution. This vulnerability was fixed in Firefox 135, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.

    • Update to 1:128.12.0+build1-0ubuntu0.22.04.1
    Published Updated
  15. CVE-2025-1018

    High · CVSS 7.3EPSS 0.42%Fix available

    Fullscreen notification is not displayed when fullscreen is re-requested

    The fullscreen notification is prematurely hidden when fullscreen is re-requested quickly by the user. This could have been leveraged to perform a potential spoofing attack. This vulnerability was fixed in Firefox 135 and Thunderbird 135.

    • Update to 1:140.7.1+build1-0ubuntu0.22.04.1
    Published Updated
  16. CVE-2025-1010

    Critical · CVSS 9.8EPSS 0.46%Fix available

    Use-after-free in Custom Highlight

    An attacker could have caused a use-after-free via the Custom Highlight API, leading to a potentially exploitable crash. This vulnerability was fixed in Firefox 135, Firefox ESR 115.20, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.

    • Update to 1:128.12.0+build1-0ubuntu0.22.04.1
    Published Updated
  17. CVE-2025-0247

    Critical · CVSS 9.8EPSS 10.61%Fix available

    Memory safety bugs fixed in Firefox 134 and Thunderbird 134

    Memory safety bugs present in Firefox 133 and Thunderbird 133. 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 was fixed in Firefox 134 and Thunderbird 134.

    • Update to 1:140.7.1+build1-0ubuntu0.22.04.1
    Published Updated
  18. CVE-2025-0243

    Medium · CVSS 5.1EPSS 0.25%Fix available

    Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6

    Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5. 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 was fixed in Firefox 134, Firefox ESR 128.6, Thunderbird 134, and Thunderbird 128.6.

    • Update to 1:140.7.1+build1-0ubuntu0.22.04.1
    Published Updated

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