CVE-2026-74989

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Internally found bugs present in Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these cou...

Linux Distros Unpatched Vulnerability : CVE-2026-74989

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Internally found bugs present in Thunderbird 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume tha...

Linux Distros Unpatched Vulnerability : CVE-2026-74988

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Internally found bugs present in Thunderbird ESR 153.0 and Thunderbird 153. Some of these bugs showed evidence of memory corruption or another security-relevant...

CVE-2026-74987

Internally found bugs present in Firefox ESR 140.13, Firefox ESR 153.0 and Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firef...

CVE-2026-74989

Internally found bugs present in Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 154 and Thunderbird 154...

CVE-2026-74989

Internally found bugs present in Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 154 and Thunderbird 154...

CVE-2026-74989

CVE-2026-74989 affects Thunderbird 153 and Firefox 153 , encompassing internally discovered bugs that exhibited evidence of memory corruption or other security-relevant defects. Mozilla presumes that with sufficient effort, some of these bugs could have been exploited to achieve remote code execu...

CVE-2026-74988

CVE-2026-74988 covers internally found bugs in Thunderbird ESR 153.0 , Thunderbird 153 , Firefox ESR 153.0 , and Firefox 153 . Some of these bugs showed evidence of memory corruption or another security-relevant defect, and Mozilla presumes that with enough effort some could have been exploited. ...

CVE-2026-74990 Internally found bugs fixed in Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1 and Firefox 154

Internally found bugs present in Firefox ESR 115.38, Firefox ESR 140.13, Firefox ESR 153.0 and Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerabilit...

EUVD-2026-60673

Internally found bugs present in Thunderbird ESR 140.13, Thunderbird ESR 153.0 and Thunderbird 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was...

CVE-2026-74990

Internally found bugs present in Firefox ESR 115.38, Firefox ESR 140.13, Firefox ESR 153.0 and Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerabilit...

CVE-2026-74987

CVE-2026-74987 covers internally discovered bugs in Thunderbird ESR 140.13 , Thunderbird ESR 153.0 , and Thunderbird 153 , with some showing evidence of memory corruption or other security-relevant defects. Mozilla presumes that with sufficient effort some could have been exploited. The CVSS 3.1 ...

Security Vulnerabilities fixed in Firefox 154 — Mozilla

Internally found bugs present in Firefox ESR 140.13, Firefox ESR 153.0 and Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. Internally found bugs present in...

Security Vulnerabilities fixed in Firefox ESR 140.14 — Mozilla

Internally found bugs present in Firefox ESR 140.13, Firefox ESR 153.0 and Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. Internally found bugs present in...

PT-2026-77021

Name of the Vulnerable Software and Affected Versions Firefox versions 153 through 153 Firefox ESR version 153.0 Thunderbird versions 153 through 153 Thunderbird ESR version 153.0 Description Internal bugs were identified that exhibit evidence of memory corruption or other security-relevant...

PT-2026-77022

Name of the Vulnerable Software and Affected Versions Firefox version 153 Thunderbird version 153 Description Internal bugs were identified that exhibit evidence of memory corruption or other security-relevant defects, which could potentially be exploited. Recommendations Update Firefox to versio...

Security Vulnerabilities fixed in Firefox ESR 153.1 — Mozilla

Internally found bugs present in Firefox ESR 140.13, Firefox ESR 153.0 and Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. Internally found bugs present in...

Security Vulnerabilities fixed in Thunderbird 140.14 — Mozilla

Internally found bugs present in Thunderbird ESR 140.13, Thunderbird ESR 153.0 and Thunderbird 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. Internally found bugs...

PT-2026-77020

Name of the Vulnerable Software and Affected Versions Firefox ESR version 140.13 Firefox ESR version 153.0 Firefox version 153 Thunderbird ESR version 140.13 Thunderbird ESR version 153.0 Thunderbird version 153 Description Internal bugs were identified that exhibit evidence of memory corruption ...

LZ4 Java: Native XXHash implementations can crash the JVM when passed invalid byte array ranges

Insufficient validation of byte array arguments in JNI-based XXHash implementations in lz4-java 1.11.0 and earlier allows callers to crash the JVM by passing an invalid array reference or invalid range to native XXHash methods. This affects applications where an attacker can influence the byte...