Description
A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Firefox | — | 115.29 |
| Mozilla | Thunderbird | — | 140.4 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | firefox-esr | 140.4.0esr-1 | — |
| Debian 14 | thunderbird | 1:140.4.0esr-1 | — |
| Debian 13 | firefox-esr | 140.4.0esr-1~deb13u1 | DSA-6025-1 |
| Debian 13 | thunderbird | 1:140.4.0esr-1~deb13u1 | DSA-6040-1 |
| Debian 12 | firefox-esr | 140.4.0esr-1~deb12u1 | DSA-6025-1 |
| Debian 12 | thunderbird | 1:140.4.0esr-1~deb12u1 | DSA-6040-1 |
| Debian 11 | firefox-esr | 140.4.0esr-1~deb11u1 | DLA-4335-1 |
| Debian 11 | thunderbird | 1:140.4.0esr-1~deb11u1 | DLA-4351-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | mozjs102 +1 | No fix yet | — |
| Ubuntu 22.04 LTS | mozjs78 +2 | No fix yet | — |
| Ubuntu 22.04 LTS | thunderbird | 1:140.7.1+build1-0ubuntu0.22.04.1 | — |
| Ubuntu 20.04 LTS | mozjs52 +1 | No fix yet | — |
| Ubuntu 18.04 LTS | mozjs38 +1 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | firefox | 140.4.0-3.el10_0 | RHSA-2025:18154 |
| RHEL 10 | thunderbird | 140.4.0-2.el10_0 | RHSA-2025:18320 |
| RHEL 9 | firefox +1 | 140.4.0-3.el9_6 | RHSA-2025:18155 |
| RHEL 9 | thunderbird | 140.4.0-2.el9_6 | RHSA-2025:18321 |
| RHEL 8 | firefox | 140.4.0-3.el8_10 | RHSA-2025:18285 |
| RHEL 8 | thunderbird | 140.4.0-2.el8_10 | RHSA-2025:18983 |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.4 EUS | firefox +1 | 140.4.0-3.el9_4 | RHSA-2025:21059 |
| RHEL 9.4 EUS | thunderbird | 140.4.0-2.el9_4 | RHSA-2025:19945 |
| RHEL 9.2 E4S | firefox +1 | 140.4.0-3.el9_2 | RHSA-2025:21064 |
| RHEL 9.2 E4S | thunderbird | 140.4.0-2.el9_2 | RHSA-2025:19944 |
| RHEL 9.0 E4S | firefox | 140.4.0-3.el9_0 | RHSA-2025:21058 |
| RHEL 9.0 E4S | thunderbird | 140.4.0-2.el9_0 | RHSA-2025:19943 |
| RHEL 8.8 TUS | firefox | 140.4.0-3.el8_8 | RHSA-2025:21057 |
| RHEL 8.8 TUS | thunderbird | 140.4.0-2.el8_8 | RHSA-2025:19942 |
| RHEL 8.8 E4S | firefox | 140.4.0-3.el8_8 | RHSA-2025:21057 |
| RHEL 8.8 E4S | thunderbird | 140.4.0-2.el8_8 | RHSA-2025:19942 |
| RHEL 8.6 TUS | firefox | 140.4.0-3.el8_6 | RHSA-2025:21056 |
| RHEL 8.6 TUS | thunderbird | 140.4.0-2.el8_6 | RHSA-2025:19941 |
| RHEL 8.6 E4S | firefox | 140.4.0-3.el8_6 | RHSA-2025:21056 |
| RHEL 8.6 E4S | thunderbird | 140.4.0-2.el8_6 | RHSA-2025:19941 |
| RHEL 8.6 AUS | firefox | 140.4.0-3.el8_6 | RHSA-2025:21056 |
| RHEL 8.6 AUS | thunderbird | 140.4.0-2.el8_6 | RHSA-2025:19941 |
| RHEL 8.4 EUS Long Life | firefox | 140.4.0-3.el8_4 | RHSA-2025:21055 |
| RHEL 8.4 EUS Long Life | thunderbird | 140.4.0-2.el8_4 | RHSA-2025:19939 |
| RHEL 8.4 AUS | firefox | 140.4.0-3.el8_4 | RHSA-2025:21055 |
| RHEL 8.4 AUS | thunderbird | 140.4.0-2.el8_4 | RHSA-2025:19939 |
| RHEL 8.2 AUS | firefox | 140.4.0-3.el8_2 | RHSA-2025:21054 |
| RHEL 8.2 AUS | thunderbird | 140.4.0-2.el8_2 | RHSA-2025:19938 |
| RHEL 7 ELS | firefox | 140.4.0-4.el7_9 | RHSA-2025:19278 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | firefox | 140.4.0-3.el10_0 | ALSA-2025:18154 |
| AlmaLinux 10 | thunderbird | 140.4.0-2.el10_0.alma.1 | ALSA-2025:18320 |
| AlmaLinux 9 | firefox +1 | 140.4.0-3.el9_6.alma.1 | ALSA-2025:18155 |
| AlmaLinux 9 | thunderbird | 140.4.0-2.el9_6.alma.1 | ALSA-2025:18321 |
| AlmaLinux 8 | firefox | 140.4.0-3.el8_10.alma.1 | ALSA-2025:18285 |
| AlmaLinux 8 | thunderbird | 140.4.0-2.el8_10.alma.1 | ALSA-2025:18983 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | firefox | 140.4.0-3.el10_0 | RLSA-2025:18154 |
| Rocky Linux 10 | thunderbird | 140.4.0-2.el10_0 | RLSA-2025:18320 |
| Rocky Linux 9 | firefox | 140.4.0-3.el9_6 | RLSA-2025:18155 |
| Rocky Linux 9 | thunderbird | 140.4.0-2.el9_6 | RLSA-2025:18321 |
| Rocky Linux 8 | firefox | 140.4.0-3.el8_10 | RLSA-2025:18285 |
| Rocky Linux 8 | thunderbird | 140.4.0-2.el8_10 | RLSA-2025:18983 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | MozillaFirefox | 140.4.0-150200.152.207.1 | SUSE-SU-2025:4173-1, SUSE-SU-2025:3775-1 |
| SLES 15 SP7 | MozillaThunderbird | 140.4.0-150200.8.242.1 | SUSE-SU-2025:4006-1 |
| SLES 15 SP6 | MozillaFirefox | 140.4.0-150200.152.207.1 | SUSE-SU-2025:4173-1, SUSE-SU-2025:3775-1 |
| SLES 15 SP6 | MozillaThunderbird | 140.4.0-150200.8.242.1 | SUSE-SU-2025:4006-1 |
| SLES 15 SP5 | MozillaFirefox | 140.4.0-150200.152.207.1 | SUSE-SU-2025:4173-1, SUSE-SU-2025:3775-1 |
| SLES 15 SP4 | MozillaFirefox | 140.4.0-150200.152.207.1 | SUSE-SU-2025:4173-1, SUSE-SU-2025:3775-1 |
| SLES 15 SP3 | MozillaFirefox | 140.4.0-150200.152.207.1 | SUSE-SU-2025:4173-1, SUSE-SU-2025:3775-1 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | MozillaFirefox | 140.4.0-112.286.1 | SUSE-SU-2025:4174-1, SUSE-SU-2025:3808-1 |
| SLES for SAP 16.0 | MozillaFirefox | 140.5.0-160000.1.1 | SUSE-SU-2025:21021-1 |
| SLES for SAP 15 SP5 | MozillaFirefox | 140.4.0-150200.152.207.1 | SUSE-SU-2025:4173-1, SUSE-SU-2025:3775-1 |
| SLES for SAP 15 SP4 | MozillaFirefox | 140.4.0-150200.152.207.1 | SUSE-SU-2025:4173-1, SUSE-SU-2025:3775-1 |
| SLES for SAP 15 SP3 | MozillaFirefox | 140.4.0-150200.152.207.1 | SUSE-SU-2025:4173-1, SUSE-SU-2025:3775-1 |
| SLES 16.0 | MozillaFirefox | 140.5.0-160000.1.1 | SUSE-SU-2025:21021-1 |
| SLE HPC 15 SP5 | MozillaFirefox | 140.4.0-150200.152.207.1 | SUSE-SU-2025:4173-1, SUSE-SU-2025:3775-1 |
| SLE HPC 15 SP4 | MozillaFirefox | 140.4.0-150200.152.207.1 | SUSE-SU-2025:4173-1, SUSE-SU-2025:3775-1 |
| SLE HPC 15 SP3 | MozillaFirefox | 140.4.0-150200.152.207.1 | SUSE-SU-2025:4173-1, SUSE-SU-2025:3775-1 |
| SUSE Enterprise Storage 7.1 | MozillaFirefox | 140.4.0-150200.152.207.1 | SUSE-SU-2025:4173-1, SUSE-SU-2025:3775-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 144.0-1.1 | openSUSE-SU-2025:15645-1 |
| openSUSE Tumbleweed | firefox-esr +1 | 140.4.0-1.1 | openSUSE-SU-2025:15646-1, openSUSE-SU-2025:15632-1 |
| openSUSE Leap 16.0 | MozillaFirefox | 140.5.0-160000.1.1 | openSUSE-SU-2025:20065-1 |
| openSUSE Leap 16.0 | MozillaThunderbird | 140.4.0-bp160.1.1 | openSUSE-SU-2025:20026-1 |
| openSUSE Leap 15.6 | MozillaFirefox | 140.4.0-150200.152.207.1 | SUSE-SU-2025:4173-1, SUSE-SU-2025:3775-1 |
| openSUSE Leap 15.6 | MozillaThunderbird | 140.4.0-150200.8.242.1 | SUSE-SU-2025:4006-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | firefox | 140.4.0-1.amzn2023.0.2 | ALAS2023-2025-1246 |
| Amazon Linux 2 | thunderbird | 140.4.0-1.amzn2.0.1 | ALAS2-2025-3052 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | firefox | 140.4.0-3.0.1.el10_0 | ELSA-2025-18154 |
| Oracle Linux 10 | thunderbird | 140.4.0-2.0.1.el10_0 | ELSA-2025-18320 |
| Oracle Linux 9 | firefox +1 | 140.4.0-3.0.1.el9_6 | ELSA-2025-18155 |
| Oracle Linux 9 | thunderbird | 140.4.0-2.0.1.el9_6 | ELSA-2025-18321 |
| Oracle Linux 8 | firefox | 140.4.0-3.0.1.el8_10 | ELSA-2025-18285 |
| Oracle Linux 8 | thunderbird | 140.4.0-2.0.1.el8_10 | ELSA-2025-18983 |
| Oracle Linux 7 | firefox | 140.4.0-4.0.1.el7_9 | ELSA-2025-19278 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | firefox | 140.4-r0 | — |
Advisories 50
- ALSA-2025:18154 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:18320 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:18321 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:18155 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:18983 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:18285 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2025-2275 Mozilla Firefox: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 30, 2026
- RHSA-2025:19944 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:21059 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:19278 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:18285 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:21064 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:21058 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:21056 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:21057 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:21055 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:21054 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:19945 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:19942 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:19943 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:19939 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:19941 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:19938 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:18983 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:18321 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:18320 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:18154 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:18155 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- openSUSE-SU-2025:20065-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:20026-1 Security update for MozillaThunderbird SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15646-1 MozillaThunderbird-140.4.0-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15645-1 MozillaFirefox-144.0-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15632-1 firefox-esr-140.4.0-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4006-1 Security update for MozillaThunderbird SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:3808-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:21021-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Mar 23, 2026
- RLSA-2025:18285 Important: firefox security update Rocky Linux Security Advisories · Feb 7, 2026
- SUSE-SU-2025:4174-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:3775-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:4173-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2025-19278 Important: firefox security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Dec 15, 2025
- RLSA-2025:18321 Important: thunderbird security update Rocky Linux Security Advisories · Oct 28, 2025
- ALAS2-2025-3052 Important: thunderbird security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 27, 2025
- ALAS2023-2025-1246 Important: firefox security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Oct 27, 2025
- DLA-4351-1 thunderbird - security update Debian Security (DSA / DLA) · Oct 27, 2025
- DSA-6040-1 thunderbird - security update Debian Security (DSA / DLA) · Oct 26, 2025
- RLSA-2025:18320 Important: thunderbird security update Rocky Linux Security Advisories · Oct 26, 2025
- RLSA-2025:18983 Important: thunderbird security update Rocky Linux Security Advisories · Oct 23, 2025
- ELSA-2025-18983 Important: thunderbird security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Oct 23, 2025
- NCSC-2025-0325 Kwetsbaarheden verholpen in Mozilla Firefox en Thunderbird NCSC-NL (Netherlands) · Oct 20, 2025
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1989127
- https://www.mozilla.org/security/advisories/mfsa2025-81/
- https://www.mozilla.org/security/advisories/mfsa2025-82/
- https://www.mozilla.org/security/advisories/mfsa2025-83/
- https://www.mozilla.org/security/advisories/mfsa2025-84/
- https://www.mozilla.org/security/advisories/mfsa2025-85/