[slackware-security] mozilla-firefox

New mozilla-firefox packages are available for Slackware 15.0 and -current to fix security issues. Here are the details from the Slackware 15.0 ChangeLog: patches/packages/mozilla-firefox-140.14.0esr-i686-1slack15.0.txz: Upgraded. This update contains security fixes and improvements. For more...

Linux Distros Unpatched Vulnerability : CVE-2026-74990

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 140.13, Thunderbird ESR 153.0 and Thunderbird 153. Some of these bugs showed evidence of memory corruption or...

CVE-2026-74990

creationtimestamp| type| source ---|---|--- 2026-08-18 20:20:05+00:00| seen| https://bsky.app/profile/stackflag.bsky.social/post/3mtf23mac2525 2026-08-19 03:20:04+00:00| seen| https://bsky.app/profile/stackflag.bsky.social/post/3mtfrkkkdx72j 2026-08-19 04:47:16+00:00| seen|...

CVE-2026-74990

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: 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...

CVE-2026-74990

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...

UBUNTU-CVE-2026-74990

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 fixed in Thunderbird ESR 140.14, Thunderbird ESR 153.1 and Thunderbird 154

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 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

Mozilla Thunderbird versions 140.13 , 153.0 , and 153 are affected by internal bugs that may lead to memory corruption or other security-relevant defects. While some defects could potentially be exploited with sufficient effort, specific exploit details are not provided in the documents. The vuln...

Mozilla Firefox ESR < 140.14

The version of Firefox ESR installed on the remote Windows host is prior to 140.14. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-76 advisory. - Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14...

Mozilla Firefox ESR < 153.1

The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 153.1. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-77 advisory. - Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 154, Firefox E...

Mozilla Firefox < 154.0

The version of Firefox installed on the remote Windows host is prior to 154.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-74 advisory. - Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14,...

Mozilla Firefox ESR < 153.1

The version of Firefox ESR installed on the remote Windows host is prior to 153.1. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-77 advisory. - Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14,...

Mozilla Firefox ESR < 140.14

The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 140.14. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-76 advisory. - Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 154, Firefox...

CVE-2026-74990: Improper Restriction of Operations within the Bounds of a Memory Buffer

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...

Mozilla Firefox ESR < 115.39

The version of Firefox ESR installed on the remote Windows host is prior to 115.39. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-75 advisory. - Internally found bugs present in Firefox ESR 115.38, Firefox ESR 140.13, Firefox ESR 153.0 and Firefox 153. Some ...

Mozilla Firefox ESR < 115.39

The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 115.39. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-75 advisory. - Internally found bugs present in Firefox ESR 115.38, Firefox ESR 140.13, Firefox ESR 153.0 and Firefox...

Mozilla Firefox < 154.0

The version of Firefox installed on the remote macOS or Mac OS X host is prior to 154.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-74 advisory. - Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 154, Firefox ESR...