CVE-2026-117882
published 2026-10-27CVE-2026-117882: Use-after-free in the Layout component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird…
PriorityP425
EPSS
0.19%
8.3th percentile
Use-after-free in the Layout component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| mozilla | firefox | < Firefox 159 | Firefox 159 |
| mozilla | firefox_esr | < Firefox ESR 153.6 | Firefox ESR 153.6 |
| mozilla | firefox_esr | < Firefox ESR 115.44 | Firefox ESR 115.44 |
| mozilla | thunderbird | < Thunderbird 159 | Thunderbird 159 |
| mozilla | thunderbird | < Thunderbird 153.6 | Thunderbird 153.6 |
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VulDB
Mozilla Firefox up to 115.43/153.5/158 Layout use after free (Nessus ID 373648)
vuldb·2026-10-30
CVE-2026-117882 [CRITICAL] Mozilla Firefox up to 115.43/153.5/158 Layout use after free (Nessus ID 373648)
A vulnerability identified as critical has been detected in Mozilla Firefox up to 115.43/153.5/158. The impacted element is an unknown function of the component Layout. The manipulation leads to use after free.
This vulnerability is uniquely identified as CVE-2026-117882. The attack is possible to be carried out remotely. No exploit exists.
You should upgrade the affected component.
GHSA
Use-after-free in the Layout component.
ghsa_unreviewed·2026-10-27
CVE-2026-117882 Use-after-free in the Layout component.
Use-after-free in the Layout component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, and Firefox ESR 153.6.
Mozilla
Mozilla Foundation Security Advisory 2026-121: CVE-2026-117882
vendor_mozilla
CVE-2026-117882 Mozilla Foundation Security Advisory 2026-121: CVE-2026-117882
Mozilla Foundation Security Advisory 2026-121
CVE: CVE-2026-117882
Product: Thunderbird
Impact: low
Fixed in: Thunderbird 159
Mozilla
Mozilla Foundation Security Advisory 2026-118: CVE-2026-117882
vendor_mozilla
CVE-2026-117882 Mozilla Foundation Security Advisory 2026-118: CVE-2026-117882
Mozilla Foundation Security Advisory 2026-118
CVE: CVE-2026-117882
Product: Firefox
Impact: low
Fixed in: Firefox 159
Mozilla
Mozilla Foundation Security Advisory 2026-120: CVE-2026-117882
vendor_mozilla
CVE-2026-117882 Mozilla Foundation Security Advisory 2026-120: CVE-2026-117882
Mozilla Foundation Security Advisory 2026-120
CVE: CVE-2026-117882
Product: Firefox ESR
Impact: low
Fixed in: Firefox ESR 153.6
Mozilla
Mozilla Foundation Security Advisory 2026-122: CVE-2026-117882
vendor_mozilla
CVE-2026-117882 Mozilla Foundation Security Advisory 2026-122: CVE-2026-117882
Mozilla Foundation Security Advisory 2026-122
CVE: CVE-2026-117882
Product: Thunderbird
Impact: low
Fixed in: Thunderbird 153.6
Mozilla
Mozilla Foundation Security Advisory 2026-119: CVE-2026-117882
vendor_mozilla
CVE-2026-117882 Mozilla Foundation Security Advisory 2026-119: CVE-2026-117882
Mozilla Foundation Security Advisory 2026-119
CVE: CVE-2026-117882
Product: Firefox ESR
Impact: low
Fixed in: Firefox ESR 115.44
No detection rules found.
No public exploits indexed.
https://bugzilla.mozilla.org/show_bug.cgi?id=2076268https://www.mozilla.org/security/advisories/mfsa2026-118/https://www.mozilla.org/security/advisories/mfsa2026-119/https://www.mozilla.org/security/advisories/mfsa2026-120/https://www.mozilla.org/security/advisories/mfsa2026-121/https://www.mozilla.org/security/advisories/mfsa2026-122/
2026-10-27
Published