CVE-2026-16362
published 2026-07-21CVE-2026-16362: Use-after-free in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
PriorityP348high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
0.29%
21.4th percentile
Use-after-free in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| mozilla | firefox | < Firefox 153 | Firefox 153 |
| mozilla | firefox | < 140.13.0 | 140.13.0 |
| mozilla | firefox | < 153.0.0 | 153.0.0 |
| mozilla | firefox | — | — |
| mozilla | firefox_esr | < Firefox ESR 140.13 | Firefox ESR 140.13 |
| mozilla | thunderbird | < Thunderbird 153 | Thunderbird 153 |
| mozilla | thunderbird | < Thunderbird 140.13 | Thunderbird 140.13 |
| mozilla | thunderbird | < 140.13.0 | 140.13.0 |
| mozilla | thunderbird | — | — |
| mozilla | thunderbird | >= 141.0 < 153.0 | 153.0 |
| rhel10 | firefox-flatpak | — | — |
| rhel10 | thunderbird-flatpak | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
vendor_redhat8.8HIGH
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Red Hat
firefox: thunderbird: Use-after-free in the WebRTC: Audio/Video component
vendor_redhat·2026-07-21·CVSS 8.8
CVE-2026-16362 [HIGH] CWE-825 firefox: thunderbird: Use-after-free in the WebRTC: Audio/Video component
firefox: thunderbird: Use-after-free in the WebRTC: Audio/Video component
A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:
Use-after-free in the WebRTC: Audio/Video 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 Enterprise Linux 10) - Affected
Package: firefox (Red Hat Enterprise Linux 6) - Out of support scope
Package: thunderbird (Red Hat Enterprise Linux 6) - Out of support scope
Package
Mozilla
Mozilla Foundation Security Advisory 2026-71: CVE-2026-16362
vendor_mozilla
CVE-2026-16362 Mozilla Foundation Security Advisory 2026-71: CVE-2026-16362
Mozilla Foundation Security Advisory 2026-71
CVE: CVE-2026-16362
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 153
Mozilla
Mozilla Foundation Security Advisory 2026-72: CVE-2026-16362
vendor_mozilla
CVE-2026-16362 Mozilla Foundation Security Advisory 2026-72: CVE-2026-16362
Mozilla Foundation Security Advisory 2026-72
CVE: CVE-2026-16362
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 140.13
Mozilla
Mozilla Foundation Security Advisory 2026-68: CVE-2026-16362
vendor_mozilla
CVE-2026-16362 Mozilla Foundation Security Advisory 2026-68: CVE-2026-16362
Mozilla Foundation Security Advisory 2026-68
CVE: CVE-2026-16362
Product: Firefox
Impact: high
Fixed in: Firefox 153
Mozilla
Mozilla Foundation Security Advisory 2026-70: CVE-2026-16362
vendor_mozilla
CVE-2026-16362 Mozilla Foundation Security Advisory 2026-70: CVE-2026-16362
Mozilla Foundation Security Advisory 2026-70
CVE: CVE-2026-16362
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 140.13
GHSA
Use-after-free in the WebRTC: Audio/Video component.
ghsa_unreviewed·2026-07-21
CVE-2026-16362 [HIGH] CWE-416 Use-after-free in the WebRTC: Audio/Video component.
Use-after-free in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 153 and Firefox ESR 140.13.
No detection rules found.
No public exploits indexed.
2026-07-21
Published