CVE-2026-3847
Last modified
CVE-2026-3847 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Memory safety bugs present in Firefox 148.0.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. EPSS estimates a 0.31% chance of exploitation in the next 30 days.
Description
Memory safety bugs present in Firefox 148.0.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 148.0.2.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 148.0.2 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2026-3847?
How severe is CVE-2026-3847?
How do I fix CVE-2026-3847?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-38444osTicket v1.18.3 is vulnerable to Stored Cross-Site Scriptin…6.1
- CVE-2026-38446A stored cross-site scripting (XSS) vulnerability exists in …6.1
- CVE-2026-38447osTicket 1.18.3 generates API keys using a predictable const…9.8
- CVE-2026-3845Heap buffer overflow in the Audio/Video: Playback component …8.8
- CVE-2026-38450An issue in Aetopia Digital Asset Management DAM v.1.0.0 all…9.8
- CVE-2026-3846Same-origin policy bypass in the CSS Parsing and Computation…6.5
- CVE-2026-3848GitLab has remediated an issue in GitLab CE/EE affecting all…5
- CVE-2026-3849Stack Buffer Overflow in wc_HpkeLabeledExtract via Oversized…9.8
- CVE-2026-38500Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultID…
- CVE-2026-38526An authenticated arbitrary file upload vulnerability in the …9.9
- CVE-2026-38527A Server-Side Request Forgery (SSRF) in the /settings/webhoo…8.5
- CVE-2026-38528Krayin CRM v2.2.x was discovered to contain a SQL injection …7.1
Are you affected by CVE-2026-3847?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
