CVE-2025-8034 Memory safety bugs fixed in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141

Memory safety bugs present in Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been...

CVE-2025-8034

CVE-2025-8034 involves memory safety bugs in Mozilla Firefox/Thunderbird across multiple releases (Firefox ESR 115.25, 128.12; Firefox/Thunderbird 140.x; ESR 115.26, 128.13, 140.1). Some bugs show memory corruption and could potentially be exploited to run arbitrary code. Affected products list i...

CVE-2025-8034

Memory safety bugs present in Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been...

CVE-2025-8034

Memory safety bugs present in Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been...

Security Vulnerabilities fixed in Firefox ESR 128.13 — Mozilla

On 64-bit platforms IonMonkey-JIT only wrote 32 bits of the 64-bit return value space on the stack. Baseline-JIT, however, read the entire 64 bits. On arm64, a WASM brtable instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorrec...

Mozilla -- Memory safety bugs

[email protected] reports: Memory safety bugs present in Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140. 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...

Mozilla -- Memory safety bugs

[email protected] reports: Memory safety bugs present in Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could hav...

Mozilla -- Memory safety bugs

[email protected] reports: Memory safety bugs present in Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140. Some of these bugs showed evidence of memory corruption and we presume that with enough effort som...

Mozilla -- Multiple vulnerabilities

[email protected] reports: Memory safety bugs present in Firefox 140 and Thunderbird 140. 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. Focus incorrectly truncated URLs towards the...

Security Vulnerabilities fixed in Firefox ESR 115.26 — Mozilla

On 64-bit platforms IonMonkey-JIT only wrote 32 bits of the 64-bit return value space on the stack. Baseline-JIT, however, read the entire 64 bits. On arm64, a WASM brtable instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorrec...

Mozilla Firefox ESR < 115.26

The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 115.26. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-57 advisory. - Memory safety bugs present in Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox E...

Mozilla Thunderbird < 128.13

The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 128.13. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-62 advisory. - Memory safety bugs present in Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbir...

Mozilla Firefox ESR < 140.1

The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 140.1. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-59 advisory. - Memory safety bugs present in Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140...

Mozilla Firefox ESR < 128.13

The version of Firefox ESR installed on the remote Windows host is prior to 128.13. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-58 advisory. - Memory safety bugs present in Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbird ESR 140....

KLA86012 Multiple vulnerabilities in Mozilla Firefox ESR

Multiple vulnerabilities were found in Mozilla Firefox ESR. Malicious users can exploit these vulnerabilities to bypass security restrictions, cause denial of service, execute arbitrary code, obtain sensitive information. Below is a complete list of vulnerabilities: 1. Security bypass vulnerabili...

PT-2025-30491

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 141 Thunderbird versions prior to 141 Description The software contains memory safety bugs. Some of these bugs showed evidence of memory corruption, and it is presumed that with enough effort, some of these could have...

Security Vulnerabilities fixed in Thunderbird 141 — Mozilla

On 64-bit platforms IonMonkey-JIT only wrote 32 bits of the 64-bit return value space on the stack. Baseline-JIT, however, read the entire 64 bits. On arm64, a WASM brtable instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorrec...

Security Vulnerabilities fixed in Firefox ESR 140.1 — Mozilla

On 64-bit platforms IonMonkey-JIT only wrote 32 bits of the 64-bit return value space on the stack. Baseline-JIT, however, read the entire 64 bits. On arm64, a WASM brtable instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorrec...

KLA86016 Multiple vulnerabilities in Mozilla Thunderbird

Multiple vulnerabilities were found in Mozilla Thunderbird. Malicious users can exploit these vulnerabilities to bypass security restrictions, cause denial of service, execute arbitrary code, obtain sensitive information, spoof user interface. Below is a complete list of vulnerabilities: 1...

PT-2025-30484

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 141 Thunderbird versions prior to 141 Firefox ESR versions prior to 128.13 Firefox ESR versions prior to 140.1 Thunderbird ESR versions prior to 128.13 Thunderbird ESR versions prior to 140.1 Description Memory safety...