CVE-2026-109716
published 2026-10-13CVE-2026-109716: Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5…
PriorityP342high8.1CVSS 3.1
AVNACLPRNUIRSUCHIHAN
EPSS
0.31%
23.1th percentile
Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| mozilla | firefox | < Firefox 158 | Firefox 158 |
| mozilla | firefox_esr | < Firefox ESR 115.43 | Firefox ESR 115.43 |
| mozilla | firefox_esr | < Firefox ESR 153.5 | Firefox ESR 153.5 |
| mozilla | thunderbird | < Thunderbird 158 | Thunderbird 158 |
| mozilla | thunderbird | < Thunderbird 153.5 | Thunderbird 153.5 |
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Mozilla
Mozilla Foundation Security Advisory 2026-107: CVE-2026-109716
vendor_mozilla
CVE-2026-109716 Mozilla Foundation Security Advisory 2026-107: CVE-2026-109716
Mozilla Foundation Security Advisory 2026-107
CVE: CVE-2026-109716
Product: Firefox ESR
Impact: moderate
Fixed in: Firefox ESR 115.43
Mozilla
Mozilla Foundation Security Advisory 2026-108: CVE-2026-109716
vendor_mozilla
CVE-2026-109716 Mozilla Foundation Security Advisory 2026-108: CVE-2026-109716
Mozilla Foundation Security Advisory 2026-108
CVE: CVE-2026-109716
Product: Firefox ESR
Impact: low
Fixed in: Firefox ESR 153.5
Mozilla
Mozilla Foundation Security Advisory 2026-106: CVE-2026-109716
vendor_mozilla
CVE-2026-109716 Mozilla Foundation Security Advisory 2026-106: CVE-2026-109716
Mozilla Foundation Security Advisory 2026-106
CVE: CVE-2026-109716
Product: Firefox
Impact: low
Fixed in: Firefox 158
Mozilla
Mozilla Foundation Security Advisory 2026-109: CVE-2026-109716
vendor_mozilla
CVE-2026-109716 Mozilla Foundation Security Advisory 2026-109: CVE-2026-109716
Mozilla Foundation Security Advisory 2026-109
CVE: CVE-2026-109716
Product: Thunderbird
Impact: low
Fixed in: Thunderbird 158
Mozilla
Mozilla Foundation Security Advisory 2026-110: CVE-2026-109716
vendor_mozilla
CVE-2026-109716 Mozilla Foundation Security Advisory 2026-110: CVE-2026-109716
Mozilla Foundation Security Advisory 2026-110
CVE: CVE-2026-109716
Product: Thunderbird
Impact: low
Fixed in: Thunderbird 153.5
GHSA
Incorrect boundary conditions in the JavaScript Engine component.
ghsa_unreviewed·2026-10-13
CVE-2026-109716 Incorrect boundary conditions in the JavaScript Engine component.
Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, and Firefox ESR 153.5.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://bugzilla.mozilla.org/show_bug.cgi?id=2073269https://www.mozilla.org/security/advisories/mfsa2026-106/https://www.mozilla.org/security/advisories/mfsa2026-107/https://www.mozilla.org/security/advisories/mfsa2026-108/https://www.mozilla.org/security/advisories/mfsa2026-109/https://www.mozilla.org/security/advisories/mfsa2026-110/
2026-10-13
Published