CVE-2026-12292
published 2026-06-16CVE-2026-12292: Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird…
PriorityP342high8.1CVSS 3.1
AVNACLPRNUIRSUCHIHAN
EPSS
0.40%
31.9th percentile
Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| mozilla | firefox | < Firefox 152 | Firefox 152 |
| mozilla | firefox | < 140.12.0 | 140.12.0 |
| mozilla | firefox | < 152.0.0 | 152.0.0 |
| mozilla | firefox | — | — |
| mozilla | firefox_esr | < Firefox ESR 140.12 | Firefox ESR 140.12 |
| mozilla | thunderbird | < Thunderbird 140.12 | Thunderbird 140.12 |
| mozilla | thunderbird | < Thunderbird 152 | Thunderbird 152 |
| mozilla | thunderbird | < 140.12.0 | 140.12.0 |
| mozilla | thunderbird | < 152.0.0 | 152.0.0 |
| mozilla | thunderbird | — | — |
| rhel10 | firefox-flatpak | — | — |
| rhel10 | thunderbird-flatpak | — | — |
CVSS provenance
nvdv3.18.1HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
vendor_redhat7.5HIGH
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Red Hat
firefox: thunderbird: Incorrect boundary conditions in the Web Audio component
vendor_redhat·2026-06-16·CVSS 7.5
CVE-2026-12292 [HIGH] CWE-787 firefox: thunderbird: Incorrect boundary conditions in the Web Audio component
firefox: thunderbird: Incorrect boundary conditions in the Web Audio component
Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:
Incorrect boundary conditions in the Web Audio component
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Package: firefox (Red Hat Enterprise Linux 10) - Affected
Package: rhel10/firefox-flatpak (Red Hat Enterprise Linux 10) - Affected
Package: rhel10/thunderbird-flatpak (Red Hat Enterprise Linux 10) - Affected
Package: thunderbird (Red Hat Enterpris
Mozilla
Mozilla Foundation Security Advisory 2026-58: CVE-2026-12292
vendor_mozilla
CVE-2026-12292 Mozilla Foundation Security Advisory 2026-58: CVE-2026-12292
Mozilla Foundation Security Advisory 2026-58
CVE: CVE-2026-12292
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 140.12
Mozilla
Mozilla Foundation Security Advisory 2026-61: CVE-2026-12292
vendor_mozilla
CVE-2026-12292 Mozilla Foundation Security Advisory 2026-61: CVE-2026-12292
Mozilla Foundation Security Advisory 2026-61
CVE: CVE-2026-12292
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 140.12
Mozilla
Mozilla Foundation Security Advisory 2026-60: CVE-2026-12292
vendor_mozilla
CVE-2026-12292 Mozilla Foundation Security Advisory 2026-60: CVE-2026-12292
Mozilla Foundation Security Advisory 2026-60
CVE: CVE-2026-12292
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 152
Mozilla
Mozilla Foundation Security Advisory 2026-57: CVE-2026-12292
vendor_mozilla
CVE-2026-12292 Mozilla Foundation Security Advisory 2026-57: CVE-2026-12292
Mozilla Foundation Security Advisory 2026-57
CVE: CVE-2026-12292
Product: Firefox
Impact: high
Fixed in: Firefox 152
GHSA
Incorrect boundary conditions in the Web Audio component.
ghsa_unreviewed·2026-06-16
CVE-2026-12292 Incorrect boundary conditions in the Web Audio component.
Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 152 and Firefox ESR 140.12.
No detection rules found.
No public exploits indexed.
https://bugzilla.mozilla.org/show_bug.cgi?id=2038465https://www.mozilla.org/security/advisories/mfsa2026-57/https://www.mozilla.org/security/advisories/mfsa2026-58/https://www.mozilla.org/security/advisories/mfsa2026-60/https://www.mozilla.org/security/advisories/mfsa2026-61/https://access.redhat.com/errata/RHSA-2026:27717https://access.redhat.com/errata/RHSA-2026:27733https://access.redhat.com/errata/RHSA-2026:27734https://access.redhat.com/errata/RHSA-2026:29940https://access.redhat.com/errata/RHSA-2026:30846https://access.redhat.com/errata/RHSA-2026:33445https://access.redhat.com/errata/RHSA-2026:36100https://access.redhat.com/errata/RHSA-2026:36101https://access.redhat.com/errata/RHSA-2026:36102https://access.redhat.com/errata/RHSA-2026:36103https://access.redhat.com/errata/RHSA-2026:37210https://access.redhat.com/errata/RHSA-2026:37391https://access.redhat.com/errata/RHSA-2026:38506https://access.redhat.com/errata/RHSA-2026:38750https://access.redhat.com/errata/RHSA-2026:38751https://access.redhat.com/errata/RHSA-2026:38753https://access.redhat.com/security/cve/CVE-2026-12292https://bugzilla.redhat.com/show_bug.cgi?id=2489237https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12292.json
2026-06-16
Published