---
cve: "CVE-2026-8388"
severity: "MEDIUM"
cvss: 6.5
epss: "24%"
vendor: "Generic Security"
kev: false
exploited: false
published: "2026-05-12 14:17:11"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-14T11:23:49+02:00"
---

# CVE-2026-8388

> 6.5 MEDIUM

## Beschreibung

Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Keine | good |

## Referenzen

- <https://bugzilla.mozilla.org/show_bug.cgi?id=2036978>
- <https://www.mozilla.org/security/advisories/mfsa2026-45/>
- <https://www.mozilla.org/security/advisories/mfsa2026-47/>
- <https://www.mozilla.org/security/advisories/mfsa2026-48/>
- <https://www.mozilla.org/security/advisories/mfsa2026-51/>
- <https://access.redhat.com/errata/RHSA-2026:21378>
- <https://access.redhat.com/errata/RHSA-2026:21380>
- <https://access.redhat.com/errata/RHSA-2026:21381>
- <https://access.redhat.com/errata/RHSA-2026:21382>
- <https://access.redhat.com/errata/RHSA-2026:22325>
- <https://access.redhat.com/errata/RHSA-2026:22643>
- <https://access.redhat.com/errata/RHSA-2026:26174>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-8388) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_