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Mozilla: Use-after-free in HTTP2 Session object
| Reporter | Title | Published | Views | Family All 124 |
|---|---|---|---|---|
 | CVE-2021-43535 | 8 Dec 202122:15 | – | attackerkb |
 | CVE-2021-43535 | 8 Dec 202121:20 | – | alpinelinux |
 | Astra Linux – Vulnerability in Firefox and Thunderbird | 20 May 202605:53 | – | astralinux |
 | The vulnerability of the Thunderbird email client, as well as the Firefox and Firefox ESR browsers, relates to the use of memory after it is freed, allowing an attacker to execute arbitrary code. | 20 Dec 202100:00 | – | bdu_fstec |
 | CentOS 7 : firefox (RHSA-2021:4116) | 17 Nov 202100:00 | – | nessus |
| CentOS 7 : thunderbird (RHSA-2021:4134) | 17 Nov 202100:00 | – | nessus |
| Debian DLA-2863-1 : firefox-esr - LTS security update | 29 Dec 202100:00 | – | nessus |
| Debian DLA-2874-1 : thunderbird - LTS security update | 4 Jan 202200:00 | – | nessus |
| Debian DSA-5026-1 : firefox-esr - security update | 19 Dec 202100:00 | – | nessus |
| Debian DSA-5034-1 : thunderbird - security update | 3 Jan 202200:00 | – | nessus |
10
| OS | OS Version | Architecture | Package | Package Version | Filename |
|---|---|---|---|---|---|
| Red Hat Enterprise Linux | 7.9 | ppc64le | thunderbird | 91.3.0-2.el7_9 | thunderbird-91.3.0-2.el7_9.ppc64le.rpm |
| Red Hat Enterprise Linux | 7.9 | x86_64 | thunderbird | 91.3.0-2.el7_9 | thunderbird-91.3.0-2.el7_9.x86_64.rpm |
| Red Hat Enterprise Linux | 7.9 | ppc64le | thunderbird-debuginfo | 91.3.0-2.el7_9 | thunderbird-debuginfo-91.3.0-2.el7_9.ppc64le.rpm |
| Red Hat Enterprise Linux | 7.9 | x86_64 | thunderbird-debuginfo | 91.3.0-2.el7_9 | thunderbird-debuginfo-91.3.0-2.el7_9.x86_64.rpm |
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25 Jun 2026 10:58Current
7.4High risk
Vulners AI Score7.4
CVSS 26.8
CVSS 3.18.8
EPSS0.0111